VSL Traffic

[zebula]

If properly set up no real traffic should traverse the VSL. What amount is considered no real traffic? I see about 100 meg worth of traffic going from the 6500 with the standby route processor over to the 6500 with the active processor. There is no traffic going back the other way.

Is this normal, if so what is this traffic?

[Joseph W. Doherty]

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Posting

All other attached devices are linked to both VSS boxes and all those links are working and if L3 costed the same?

[Reza Sharifi]

Only under the following circumstances VSL will carry trsffic

•Layer 2 traffic flooded over a VLAN (even for dual-homed links).

•Packets processed by software on the VSS active supervisor engine where the ingress interface is on the VSS standby chassis.

•The packet destination is on the peer chassis, such as the following examples:

–Traffic within a VLAN where the known destination interface is on the peer chassis.

–Traffic that is replicated for a multicast group and the multicast receivers are on the peer chassis.

–The known unicast destination MAC address is on the peer chassis.

–The packet is a MAC notification frame destined for a port on the peer chassis.

HTH

[zebula]

The only thing connected to switch 2 in either VSS domain is the other 6500s and one other switch. The other switch is being used for dual-active detection. I attempted but had issues adding an image.

The concern I have is if you sum up the input rates and output rates they should be somewhat equal, I would think. I can not account for about 150+ meg coming out of switch 2 (Te 2/5/5) heading to switch 1 (Te1/5/5).

Only active physical interfaces on
VSS Domain 100
Switch 2

TenGigabitEthernet2/5/4 is up, line protocol is up (connected)
  5 minute input rate 2000 bits/sec, 2 packets/sec
  5 minute output rate 248000 bits/sec, 79 packets/sec

TenGigabitEthernet2/5/5 is up, line protocol is up (connected)
  5 minute input rate 292000 bits/sec, 169 packets/sec
  5 minute output rate 231434000 bits/sec, 90797 packets/sec

TenGigabitEthernet2/7/4 is up, line protocol is up (connected)
  5 minute input rate 79912000 bits/sec, 32759 packets/sec
  5 minute output rate 8414000 bits/sec, 2046 packets/sec

GigabitEthernet2/2/3 is up, line protocol is up (connected)
  5 minute input rate 1876000 bits/sec, 941 packets/sec
  5 minute output rate 2858000 bits/sec, 1057 packets/sec

Any suggestions?

Thanks

[zebula]

I think I was able to add the image.