We have 2 6513 switches with SUP720/PFC3A and various POE modules and a 6748-GE-TX facing our servers. Additionally, we have a 4Gbps portchannel trunk interconnecting the switches. We have approximately 300 Nortel IP 1140e phones in use between the two switches.
For the purpose of call recording, we've attempted to mirror the voice vlan using various approaches and have been met with limited success. We mirrored the VLAN using tx, rx, and both. When using both we appear to get duplicate packets at the destination interface.
We seem to lose packets completely going in one direction or another for a given call. Has anyone experienced a situation such as this where packets are lost before they get to the destination interface?
The call quality is perfect between the call server and the telephone. We considered capturing the traffic using VACL capture... but I believe that the layer 2 address would be lost before the traffic ever saw the destination interface... is this accurate?
The current configuration looks like this...
c6513-Site2-Sw01#sh mon sess 2
Type : Local Session
Source VLANs :
RX Only : 24
Destination Ports : Gi13/37
c6513-Site2-Sw01#sh run | inc session
monitor session 2 source vlan 24 rx
monitor session 2 destination interface Gi13/37
c6513-Site2-Sw01#sh run int Fa6/12
Current configuration : 138 bytes
no ip address
switchport access vlan 12
switchport voice vlan 24
c6513-Site2-Sw01#sh run int vlan12
Current configuration : 140 bytes
ip address 172.16.14.254 255.255.254.0
ip helper-address 172.16.10.234
no ip redirects
ip pim sparse-dense-mode
c6513-Site2-Sw01#sh run int vlan24
Current configuration : 99 bytes
ip address 172.16.25.253 255.255.254.0
service-policy input voice-policy