Hello Everyone,
I've been having issues with L2 Channel Errors incrementing in my routers. I have numerous routers and the speed in which they increment varies. Although there is no production impact of this, it is causing "noise" in the network which interferes with our monitoring. Here are some steps I have tried to isolate the issue:
- Disabled CDP on the Cisco switch connected to the Juniper router
- Disabled non-used protocols on our printers (IPX/SPX, Appletalk, etc)
Here are the errors, as well as the configurations on both the Juniper and Cisco interfaces:
Errors:
Input errors:
Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 52804,
L3 incompletes: 0, L2 channel errors: 77721, L2 mismatch timeouts: 0,
FIFO errors: 0, Resource errors: 0
Interfaces:
Juniper --
vlan-tagging;
speed 100m;
link-mode full-duplex;
gigether-options {
no-auto-negotiation;
}
unit 0 {
vlan-id 58;
family inet {
address 10.12.58.1/24 {
preferred;
}
}
}
unit 1 {
vlan-id 63;
family inet {
address 10.12.63.1/24 {
primary;
}
}
}
Cisco --
interface FastEthernet0/1
description Uplink to router
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 58,63
switchport mode trunk
duplex full
speed 100
no cdp enable
end
Does anyone have any thoughts on what I can do to isolate these errors? These are remote sites so getting a packet capture would be difficult.
