11 Replies Latest reply on Nov 6, 2015 6:09 AM by petersjncv

    Netvanta 3448 slow throughput / too many drops and delays

    mmmtl New Member

      Hi everyone,

       

      Have a strange and annoying problem at a site with a Netvanta 3448. Using only a fraction of the upstream bandwidth available (less than 2Mbps on 10Mbps available), viewing a remote security camera live video, I have the following symptoms :

       

      - extremely choppy video

      - the router only 'spits' out ~60 Kbps max

      - strange drops and delays

       

      eth 0/1 (wan - cable on b2b2c) info

       

      Hardware address is 00:00:00:00:00:00

        Ip address is xx.xx.xx.xx, netmask is 255.255.255.252

        IP MTU is 1500 bytes

        BW is 10000 Kbit

        100Mb/s, negotiated full-duplex, configured full-duplex

        ARP type: ARPA; ARP timeout is 20 minutes

        Last clearing of "show interface" counters: never

        5 minute input rate 12256 bits/sec, 16 packets/sec

        5 minute output rate 62888 bits/sec, 16 packets/sec

          Queueing method

              Configured Queueing Method: fifo

              Effective  Queueing Method: weighted fair

          Output queue: 0/258/684/64/446 (size/highest/max total/threshold/drops)

            Conversations  0/9/256 (active/max active/max total)

            Available Bandwidth 7500 kilobits/sec

          Interface Shaper: 10000/62500/62500 (rate/budget/max budget)

            1250 bytes added to budget every 1 ms

            packet stats: 430053/0/446/27752 (packets sent/waiting/dropped/delayed)

          29772890 packets input, 31111429592 bytes

          29772884 unicasts, 6 broadcasts, 0 multicasts input

          0 unknown protocol, 0 symbol errors, 0 discards

          0 input errors, 0 runts, 0 giants

          0 no buffer, 0 overruns, 0 internal receive errors

          0 alignment errors, 0 crc errors

          25975123 packets output, 6980499359 bytes

          25973498 unicasts, 2071 broadcasts, 0 multicasts output

          0 output errors, 0 deferred, 0 discards

          0 single, 0 multiple, 0 late collisions

          0 excessive collisions, 0 underruns

          0 internal transmit errors, 0 carrier sense errors

          0 resets, 0 throttles

       

      ! ADTRAN, Inc. OS version R11.5.0

      ! Boot ROM version 13.03.00.SB

      ! Platform: NetVanta 3448, part number 1200821E1

       

      I tried a completely different router (Mikrotik) and everything is fine, no problems, no drops, no choppy video when watching the remote security camera.

      Can you guys suggest something?

        • Re: Netvanta 3448 slow throughput / too many drops and delays
          mmmtl New Member

          Anyone? I really need to sort this out and don't know where to look anymore. If you guys need more info, just tell me what you need and I will post it.

          Thanks a lot.

            • Re: Netvanta 3448 slow throughput / too many drops and delays
              petersjncv Visitor

              Can you post your running config?

               

              What is the status of the uplink side?  Are you able to view link statistics there?  It is always possible that while your side sees a clean 100mb full duplex link, the other side is not auto negotiating and is stuck at half duplex.  You mention you have 10mbs available for uplink bandwidth.  Is this a 10mb circuit all together?  In many cases, circuits that only provide 10mb overall usually have the handoff port set statically to 10mb/FD. 

               

              Does WAN traffic match what is coming in on the LAN? 

              packet stats: 430053/0/446/27752 (packets sent/waiting/dropped/delayed)

              You have a large amount of delayed packets.  If the router is delaying them, there must be a reason. 

               

              Try setting your interface counters to 30 seconds to see if you can get a better picture of bandwidth usage.  Maybe something is spiking every 30-60 seconds which causes interface delays and packet drops but isn't sustained long enough to really affect the 5 minute average.  From CLI, use "statistics rate-interval 30" in config mode to change the interface counters.

                • Re: Netvanta 3448 slow throughput / too many drops and delays
                  mmmtl New Member

                  Thank you for your time.

                   

                  > Can you post your running config?

                   

                  !

                  !

                  ! ADTRAN, Inc. OS version R11.5.0

                  ! Boot ROM version 13.03.00.SB

                  ! Platform: NetVanta 3448, part number 1200821E1

                  ! Serial number LBADTN1117AN159

                  !

                  !

                  hostname "rtrgeorgebizet"

                  enable password xxxxx

                  !

                  clock timezone -5-Eastern-Time

                  !

                  ip subnet-zero

                  ip classless

                  ip default-gateway xxx.xxx.xxx.xxx

                  ip routing

                  ipv6 unicast-routing

                  !

                  !

                  domain-name "dolmen.local"

                  domain-proxy

                  name-server 4.2.2.1 4.2.2.2

                  !

                  !

                  no auto-config

                  !

                  event-history on

                  no logging forwarding

                  logging forwarding priority-level info

                  no logging email

                  !

                  no service password-encryption

                  !

                  portal-list "ALL" console ftp http-admin ssh telnet

                  portal-list "WEB" http-admin

                  !

                  username "xxxxx" password "xxxxx"

                  username "xxxxx" portal-list "WEB" password "xxxxx"

                  username "xxxxx" portal-list "ALL" password "xxxxx"

                  !

                  !

                  ip firewall

                  no ip firewall alg msn

                  no ip firewall alg mszone

                  no ip firewall alg h323

                  !

                  !

                  no dot11ap access-point-control

                  !

                  !

                  ip dhcp excluded-address 192.168.123.1 192.168.123.50

                  ip dhcp excluded-address 192.168.123.200 192.168.123.254

                  !

                  ip dhcp pool "Private"

                    network 10.10.10.0 255.255.255.0

                    dns-server 10.10.10.1

                    netbios-node-type h-node

                    default-router 10.10.10.1

                  !

                  !

                  qos map eth0/1QosWizard 20

                    ! Implicit deny any

                  qos map eth0/1QosWizard 21

                    match ip list acleth0/1QosWizSignal21

                    set dscp 26

                  !

                  qos map Internal_to_outside 30

                    match ip rtp 10000 10084 all

                    set dscp ef

                  !

                  qos map VOIP 10

                    match precedence 3

                    match precedence 5

                    match precedence 6

                    match precedence 7

                    match ip rtp 10020 10053 all

                    priority 10000 strict-rate-limiting

                    set precedence 5

                  !

                  qos cos-map 1 0 1

                  qos cos-map 2 2 3

                  qos cos-map 3 4

                  qos cos-map 4 5 6 7

                  qos queue-type wrr 25 25 25 expedite

                  !

                  !

                  vlan 1

                    name "Default"

                  !

                  vlan 5

                    name "Lien vers St-Juste"

                  !

                  !

                  no ethernet cfm

                  !

                  interface eth 0/1

                    ip address  xxx.xxx.xxx.xxx  255.255.255.252

                    ip access-policy Public

                    media-gateway ip primary

                    traffic-shape rate 10000000

                    no shutdown

                    no lldp send-and-receive

                  !

                  !

                  interface eth 0/2

                    no ip address

                    shutdown

                  !

                  !

                  interface switchport 0/1

                    no shutdown

                  !

                  interface switchport 0/2

                    no shutdown

                  !

                  interface switchport 0/3

                    no shutdown

                  !

                  interface switchport 0/4

                    no shutdown

                  !

                  interface switchport 0/5

                    no shutdown

                  !

                  interface switchport 0/6

                    no shutdown

                  !

                  interface switchport 0/7

                    no shutdown

                  !

                  interface switchport 0/8

                    no shutdown

                    switchport access vlan 5

                  !

                  !

                  interface vlan 1

                    ip address  192.168.123.254  255.255.255.0

                    ip access-policy Private

                    media-gateway ip primary

                    no shutdown

                  !

                  interface vlan 5

                    description Lien vers St-Juste

                    ip address  192.168.121.2  255.255.255.0

                    ip mtu 1500

                    ip access-policy "Private link"

                    media-gateway ip primary

                    no shutdown

                  !

                  !

                  interface t1 1/1

                    shutdown

                  !

                  !

                  ip access-list standard wizard-ics

                    remark Internet Connection Sharing

                    permit any

                  !

                  !

                  ip access-list extended acleth0/1QosWizSignal21

                    permit tcp any  any eq 5080   log

                    permit udp any  any eq 5080    log

                    permit udp any  any eq 5060 

                    permit tcp any  any eq 5060

                  !

                  ip access-list extended self

                    remark Traffic to NetVanta

                    permit ip any  any     log

                  !

                  ip access-list extended web-acl-10

                    remark CHUB Security

                    permit tcp any  any eq 8080   log

                    permit tcp any  any eq 8254   log

                    permit tcp any  any range 9010 9011   log

                    permit udp any  any eq 8080    log

                    permit udp any  any eq 8254    log

                    permit udp any  any range 9010 9011    log

                  !

                  ip access-list extended web-acl-11

                    remark 443 vers server

                    permit tcp any  any eq https   log

                  !

                  ip access-list extended web-acl-12

                    remark SUPPORT DATA-SRV

                    permit tcp any  any eq 5991   log

                  !

                  ip access-list extended web-acl-17

                    remark Traffic to unit

                    permit ip any  any     log

                  !

                  ip access-list extended web-acl-18

                    remark InterVlan

                    permit ip 192.168.124.0 0.0.0.255  192.168.123.0 0.0.0.255     log

                  !

                  ip access-list extended web-acl-19

                    remark Lien vers St-Just

                    permit ip 192.168.123.0 0.0.0.255  192.168.124.0 0.0.0.255     log

                  !

                  ip access-list extended web-acl-3

                    remark mail

                    permit tcp any  any eq smtp   log

                    permit tcp any  any eq 5001   log

                  !

                  ip access-list extended web-acl-4

                    remark admin access

                    permit tcp any  any eq 8443   log

                    deny   udp any  any eq snmp    log

                    deny   tcp any  any eq ssh   log

                    deny   tcp any  any eq ftp   log

                    permit icmp any  any     log

                  !

                  ip access-list extended web-acl-5

                    remark VPN SBS-SRV

                    permit tcp any  any eq 1723   log

                  !

                  ip access-list extended web-acl-9

                    remark Remote SV8100

                    permit tcp any  any eq 8000   log

                  !

                  !

                  ip policy-class Private

                    allow list self self

                    allow list web-acl-19 policy "Private link" stateless

                    nat source list wizard-ics interface eth 0/1 overload

                  !

                  ip policy-class "Private link"

                    allow list web-acl-17 self stateless

                    allow list web-acl-18 policy Private stateless

                  !

                  ip policy-class Public

                    nat destination list web-acl-3 address 192.168.123.8

                    allow list web-acl-4 self

                    nat destination list web-acl-5 address 192.168.123.8

                    nat destination list web-acl-9 address 192.168.123.20

                    nat destination list web-acl-10 address 192.168.123.50

                    nat destination list web-acl-11 address 192.168.123.8

                    nat destination list web-acl-12 address 192.168.123.7

                  !

                  !

                  ip route 192.168.124.0 255.255.255.0 192.168.121.1

                  !

                  no tftp server

                  no tftp server overwrite

                  http server

                  http secure-server 8443

                  snmp agent

                  no ip ftp server

                  ip ftp server default-filesystem flash

                  no ip scp server

                  no ip sntp server

                  !

                  !

                  snmp-server community Luminet RO

                  !

                  !

                  sip udp 5060

                  sip udp 5080

                  sip tcp 5060

                  sip tcp 5080

                  !

                  !

                  line con 0

                    no login

                  !

                  line telnet 0 4

                    login local-userlist

                    password password

                    no shutdown

                  line ssh 0 4

                    login local-userlist

                    no shutdown

                  !

                  !

                  ntp source ethernet 0/1

                  ntp peer pool.ntp.org source ethernet 0/1

                  !

                  !

                  end

                   

                   

                  > What is the status of the uplink side?  Are you able to view link statistics there?

                   

                  The links are : Netvanta -> Cisco router (provided by the ISP) -> cable modem (provided by the ISP)

                  We have no access at all to the ISP equipment.

                  We also have another similar config at another branch of the office (same Netvanta, same ISP equipment and internet connection) and everything is running smooth and fine there (no drops, no delays, no problem at all).

                   

                   

                  > Try setting your interface counters to 30 seconds to see if you can get a better picture of bandwidth usage.  Maybe something is spiking every 30-60 seconds which causes  interface delays and packet drops but isn't sustained long enough to really affect the 5 minute average.  From CLI, use "statistics rate-interval 30" in config mode to change the interface counters.

                   

                  I will try to figure out how to do for the rest (I'm not familiar with Adtran routers, and even less with the CLI interface!) and report back with more info.

              • Re: Netvanta 3448 slow throughput / too many drops and delays
                petersjncv Visitor

                What kind of Cisco router is installed?  Have you called the ISP to have them check their equipment for issues?

                Have you tried any testing behind the router?  Running a test to a speed test site?  Pinging places on the web and looking for packet loss?

                Generally, I don't really see an issue in the config.  However, I don't see a default route in the routing table.  While you have a default gateway set, that is really more for the host and not for routing.  See this document - What is the difference between a default route and a default gateway?

                You should put a default route in the config.

                ip route 0.0.0.0 0.0.0.0 ISP.GATEWAY.IP.ADDR

                 

                You can enable 30 second counters by going into "enabled" mode in CLI, config term, and entering "statistics rate-interval 30".  You describe "strange drops and delays".  I would definitely look for bursting traffic.

                 

                I would then recommend running other speed tests and ping tests from behind the router.  Leave some ICMP tests running and look for any packet loss patterns.

                  • Re: Netvanta 3448 slow throughput / too many drops and delays
                    mmmtl New Member

                    I'm not on site right now to check Cisco model and I did not call the ISP until now because I have done some testing and the results are not pointing in his direction.

                     

                    1. I have duplicated the config on a test router I had on hand (not Adtran) switched it with the Netvanta and everything was working fine

                    2. All the speed tests (on speedtest.net), with or without the Netvanta are fine and consistent

                    -- last one from a couple of minutes ago : ping 19 ms, download 21 Mbps, upload 8 Mbps

                     

                    Still, when I try to watch the security camera remotely, no more than 60 kbps is going out of the router (on the similar config at the other branch, doing the same thing, I can observe a sustained upstream traffic of ~ 2 Mbps). And at the problematic location, when I switch with the test router I have normal real time video stream and a traffic of ~ 1.5 -- 2 Mbps.

                     

                    For the default route, I can see it present / dynamically added in the web interface.

                     

                    For the delays and drops, I figured that the counters were never cleared..! I managed to clear the counters and I have the following results :

                     

                    --> After 35 minutes :

                    ------------------------------------------------------------

                    eth 0/1 is UP, line protocol is UP

                      Hardware address is xx:xx:xx:xx:xx:xx

                      Ip address is xxx.xxx.xxx.xxx, netmask is 255.255.255.252

                      IP MTU is 1500 bytes

                      BW is 10000 Kbit

                      100Mb/s, negotiated full-duplex, configured full-duplex

                      ARP type: ARPA; ARP timeout is 20 minutes

                      Last clearing of "show interface" counters: 00:34:53

                      5 minute input rate 925360 bits/sec, 105 packets/sec

                      5 minute output rate 209544 bits/sec, 90 packets/sec

                        Queueing method

                            Configured Queueing Method: fifo

                            Effective  Queueing Method: weighted fair

                        Output queue: 0/1/684/64/0 (size/highest/max total/threshold/drops)

                          Conversations  0/1/256 (active/max active/max total)

                          Available Bandwidth 7500 kilobits/sec

                        Interface Shaper: 10000/62500/62500 (rate/budget/max budget)

                          1250 bytes added to budget every 1 ms

                          packet stats: 79431/0/0/0 (packets sent/waiting/dropped/delayed)

                        84684 packets input, 76456219 bytes

                        84684 unicasts, 0 broadcasts, 0 multicasts input

                        0 unknown protocol, 0 symbol errors, 0 discards

                        0 input errors, 0 runts, 0 giants

                        0 no buffer, 0 overruns, 0 internal receive errors

                        0 alignment errors, 0 crc errors

                        79431 packets output, 21910783 bytes

                        79427 unicasts, 4 broadcasts, 0 multicasts output

                        0 output errors, 0 deferred, 0 discards

                        0 single, 0 multiple, 0 late collisions

                        0 excessive collisions, 0 underruns

                        0 internal transmit errors, 0 carrier sense errors

                        0 resets, 0 throttles

                     

                    --> After 2 hours 15 minutes :

                    ------------------------------------------------------------

                    eth 0/1 is UP, line protocol is UP

                      Hardware address is xx:xx:xx:xx:xx:xx

                      Ip address is xxx.xxx.xxx.xxx, netmask is 255.255.255.252

                      IP MTU is 1500 bytes

                      BW is 10000 Kbit

                      100Mb/s, negotiated full-duplex, configured full-duplex

                      ARP type: ARPA; ARP timeout is 20 minutes

                      Last clearing of "show interface" counters: 02:15:16

                      5 minute input rate 197192 bits/sec, 36 packets/sec

                      5 minute output rate 53760 bits/sec, 36 packets/sec

                        Queueing method

                            Configured Queueing Method: fifo

                            Effective  Queueing Method: weighted fair

                        Output queue: 0/141/684/64/679 (size/highest/max total/threshold/drops)

                          Conversations  0/4/256 (active/max active/max total)

                          Available Bandwidth 7500 kilobits/sec

                        Interface Shaper: 10000/62500/62500 (rate/budget/max budget)

                          1250 bytes added to budget every 1 ms

                          packet stats: 308906/0/679/10980 (packets sent/waiting/dropped/delayed)

                        339270 packets input, 318062208 bytes

                        339270 unicasts, 0 broadcasts, 0 multicasts input

                        0 unknown protocol, 0 symbol errors, 0 discards

                        0 input errors, 0 runts, 0 giants

                        0 no buffer, 0 overruns, 0 internal receive errors

                        0 alignment errors, 0 crc errors

                        308906 packets output, 78807896 bytes

                        309571 unicasts, 14 broadcasts, 0 multicasts output

                        0 output errors, 0 deferred, 0 discards

                        0 single, 0 multiple, 0 late collisions

                        0 excessive collisions, 0 underruns

                        0 internal transmit errors, 0 carrier sense errors

                        0 resets, 0 throttles

                     

                     

                    But even in the first 35 minutes, with no apparent delay/drop, I had the same throughput problem when watching the remote camera.

                      • Re: Netvanta 3448 slow throughput / too many drops and delays
                        petersjncv Visitor

                        What do the counters look like on your VLAN interfaces and switchports?  What do their link negotiations look like?  Are you connecting to a 10/100 switch into the network or are the devices directly connected into the 3448?

                         

                        You still accumulated a lot of shaper induced delays.  Try dropping the interface shaper and using a QOS map to prioritize the video traffic specifically and shape all other traffic behind it.

                          • Re: Netvanta 3448 slow throughput / too many drops and delays
                            mmmtl New Member

                            VLAN interfaces and switchports in use :

                             

                             

                            swx 0/2 is UP, line protocol is UP

                              Hardware address is xx:xx:xx:xx:xx:xx

                              100Mb/s, negotiated full-duplex, configured full-duplex

                              input flow control is disabled

                              ARP type: ARPA; ARP timeout is 20 minutes

                              Last clearing of "show interface" counters: 23:53:02

                              5 minute input rate 0 bits/sec, 0 packets/sec

                              5 minute output rate 0 bits/sec, 0 packets/sec

                                Queueing method: fifo

                                Output queue: 0/256/0 (size/max total/drops)

                                Interface Shaper: NOT ENABLED

                                4095797 packets input

                                0 symbol errors, 0 discards

                                0 input errors, 0 runts, 0 giants

                                0 alignment errors, 0 crc errors

                                6522904 packets output

                                0 output errors, 0 deferred, 0 discards

                                0 single, 0 multiple, 0 late collisions

                                0 excessive collisions

                             

                            swx 0/3 is UP, line protocol is UP

                              Hardware address is xx:xx:xx:xx:xx:xx

                              100Mb/s, negotiated full-duplex, configured full-duplex

                              input flow control is disabled

                              ARP type: ARPA; ARP timeout is 20 minutes

                              Last clearing of "show interface" counters: 23:53:02

                              5 minute input rate 0 bits/sec, 0 packets/sec

                              5 minute output rate 0 bits/sec, 0 packets/sec

                                Queueing method: fifo

                                Output queue: 0/256/0 (size/max total/drops)

                                Interface Shaper: NOT ENABLED

                                336687 packets input

                                0 symbol errors, 0 discards

                                0 input errors, 0 runts, 0 giants

                                0 alignment errors, 0 crc errors

                                719051 packets output

                                0 output errors, 0 deferred, 0 discards

                                0 single, 0 multiple, 0 late collisions

                                0 excessive collisions

                               

                             

                            vlan 1 is UP

                              Hardware address is xx:xx:xx:xx:xx:xx

                              vlan 1 Ip address is 192.168.123.254, netmask is 255.255.255.0

                              IP MTU is 1500 bytes

                              BW is 100000 Kbit

                              ARP type: ARPA; ARP timeout is 20 minutes

                              Last clearing of "show interface" counters: 23:53:04

                              5 minute input rate 181576 bits/sec, 141 packets/sec

                              5 minute output rate 1059720 bits/sec, 169 packets/sec

                                4344309 packets input, 622218684 bytes

                                4104772 unicasts, 239537 broadcasts, 0 multicasts input

                                47350 unknown protocol, 0 symbol errors, 0 discards

                                0 input errors, 0 runts, 0 giants

                                0 no buffer, 0 overruns, 0 internal receive errors

                                0 alignment errors, 0 crc errors

                                6824034 packets output, 7931497187 bytes

                                6793627 unicasts, 30407 broadcasts, 0 multicasts output

                                0 output errors, 0 deferred, 0 discards

                                0 single, 0 multiple, 0 late collisions

                                0 excessive collisions, 0 underruns

                                0 internal transmit errors, 0 carrier sense errors

                                0 resets, 0 throttles

                             

                            vlan 5 is UP

                              Description: Lien vers St-Juste

                              Hardware address is xx:xx:xx:xx:xx:xx

                              vlan 5 Ip address is 192.168.121.2, netmask is 255.255.255.0

                              IP MTU is 1500 bytes

                              BW is 100000 Kbit

                              ARP type: ARPA; ARP timeout is 20 minutes

                              Last clearing of "show interface" counters: 23:53:04

                              5 minute input rate 90704 bits/sec, 50 packets/sec

                              5 minute output rate 92736 bits/sec, 50 packets/sec

                                3634597 packets input, 4711280427 bytes

                                3634597 unicasts, 0 broadcasts, 0 multicasts input

                                0 unknown protocol, 0 symbol errors, 0 discards

                                0 input errors, 0 runts, 0 giants

                                0 no buffer, 0 overruns, 0 internal receive errors

                                0 alignment errors, 0 crc errors

                                1580004 packets output, 242778140 bytes

                                1579861 unicasts, 143 broadcasts, 0 multicasts output

                                0 output errors, 0 deferred, 0 discards

                                0 single, 0 multiple, 0 late collisions

                                0 excessive collisions, 0 underruns

                                0 internal transmit errors, 0 carrier sense errors

                                0 resets, 0 throttles

                             

                             

                             

                            The LAN is connected to a Netgear JGS524E 10/100/1000 switch and to the Netvanta on the port swx 0/2. A phone system is connected directly to swx 0/3.

                            I activated the shaper only to let know the Netvanta that no matter the negotiated port speed, the available upload bandwidth is max 10 Mbps on Internet port eth 0/1.

                            QOS maps are defined, but inactive for testing purposes only.

                             

                             

                            I have, indeed caught the following message in the CLI occasionally :

                            2015.11.03 14:22:50 LLDP LLDP:  Speed Duplex mis-match on swx 0/2. Speed/Duplex: "100M/full-duplex"   Neighbor Speed/Duplex: "? duplex"

                             

                            I will go on site to investigate, maybe change the network cable / switch port just in case.

                              • Re: Netvanta 3448 slow throughput / too many drops and delays
                                petersjncv Visitor

                                Despite what common sense says, I've seen plenty of issues with auto-negotiation between 1000mb and 100 mb ports.  That is definitely something to investigate, since there is a good chance that a.) auto-neg just isn't behaving or b.) the switch trunk port is statically set to be 1000/F. 

                                 

                                Good luck, hopefully resolving that error will fix the problem you are having.

                        • Re: Netvanta 3448 slow throughput / too many drops and delays
                          petetransitguy New Member

                          I thought of a couple of suggestions if you'd like to focus on the camera interface rather than the ISP.

                           

                          Do the settings on the Netgear complement the settings on the Adtran? I looked over the Netgear manual and there are settings for QoS and 802.1q, so that's encouraging. Can you bypass the Netgear and connect the camera directly to the Adtran? That will give you much more control, and at least one less hop, to the camera.

                           

                          If this camera operates on CS4 / AF41 / DSCP 34, then consider adding something like this to your global configuration:
                          qos dscp-cos 0 8 16 24 34 46 48 56 to 0 1 2 3 4 5 6 7

                           

                          Also, consider adding these commands to the camera interface on the Adtran.
                          spanning-tree edgeport
                          no lldp send-and-receive
                          qos default-cos 4
                          - take this with a grain of salt

                          - this is my best guess since I don't know what QoS setting your camera prefers
                          - make sure this maps correctly to the dscp-cos map

                          - at a minimum, this will help you troubleshoot

                          HTH

                            • Re: Netvanta 3448 slow throughput / too many drops and delays
                              mmmtl New Member

                              Thank you for your effort.

                              I did check the connections yesterday and changed the ethernet cable between the Netvanta and the LAN switch.

                              I also confirmed with the ISP that everything is fine on their side and there is nothing unusual to report from their hardware and link quality.

                              They also confirmed that there is no targeted bandwidth limitation or QOS of any kind in the Cisco router our anywhere else that could possibly cause our problem.

                              I probably wont be able to connect directly the camera system to the Netvanta because of the distance between the equipment.

                              Do you know what would be the easiest way to real-time monitor the activity, traffic, etc on the Netvanta?

                                • Re: Netvanta 3448 slow throughput / too many drops and delays
                                  petersjncv Visitor

                                  Were you able to log into the switch and confirm the port configuration?  Are you still getting duplex mismatch notifications?  That is a big issue to resolve, regardless if it actually fixes this problem or not.

                                   

                                  To monitor traffic real-time, you can use a "sh interface eth 0/1 realtime" to view interface counters in near real time.  You will be benefited by changing the counters to 30 seconds prior to monitoring this way.

                                   

                                  You could also run a debug ip packet.  Perhaps something is happening in the packet stream.