3 Replies Latest reply on Jul 7, 2014 4:28 AM by george_s

    QoS and switch delay on 1638P

    george_s New Member

      I have a 1638P and have the following set up:

      Bsmt24Port#sho qos cos

      CoS Priority   : 0  1  2  3  4  5  6  7

       

      Priority Queue : 1  1  2  2  3  3  4  4

      Bsmt24Port#sho qos dscp

      DSCP-CoS map:

      DSCP: 46

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

      CoS: 6

       

      Bsmt24Port#sho qos que

      Queue-type: strict-priority

      Expedite queue: n/a

      Strict-priority levels:

      qid - priority level

      1  - lowest

      2  -

      3  -

      4  - highest

      Bsmt24Port#

       

      Bsmt24Port#sho run int gi 0/15

      Building configuration...

      !

      !

      interface gigabit-switchport 0/15

      spanning-tree edgeport

      no shutdown

      switchport access vlan 2

      switchport voice vlan 3

      qos trust cos

      no lldp send-and-receive

       

      I am seeing low MOS scores for individual calls throughout the day, with all of them showing delay for the reason of the low score. There is no pattern as to when this happens, and they are not a data intensive business. A wireshark capture confirms EF tagging

       

      Phones are on VLAN 3, PC’s are VLAN 2 and plugged in the back of the phones.

       

      Everything else appears ok. Are there any built in tools on the 1638, that will show switch cpu/memory/and queue load?