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Etherchannel EoMPLS

I am implementing a Metro solution where I have two 7600s that are connected through an MPLS backbone. These 7600s have a point-to-point EoMPLS VC between them. NOTE: The 7600s do not have an OSM card, they are using the Sup720 ports to create de VC.

The 7600s are connected to the Metro Ethernet ring using an Etherchannel with two ports bundled.

Evrything is working ok, but sometimes the EoMPLS VC stop passing multicast traffic. The customer can send pings BUT their EIGRP (224.0.0.10) routing between the CPEs is down.

Is there any known limitations regarding:

Multicast with EoMPLS and/or with Etherchannel?

Thanks in advance.

4 REPLIES
Silver

Re: Etherchannel EoMPLS

EoMPLS doesn't support Multicast traffic to passthrough

Re: Etherchannel EoMPLS

Hello,

not knowing your exact configuration, have a look at the following bug:

CSCsc42814 Bug Details

Packets destined to IP addresses 224.0.0.xxx might not be send

over an EoMPLS pseudowire when the ES port is configured

as a trunk port.

[Conditions]

This problem only occurs when using vlan based EoMPLS

and the vlan has been cleared from the trunk(s) on the ES ports

Ex:

Interface vlan 50

no ip address

xconnect 10.1.1.1 123 encapsulation mpls

!

Interface GigabitEthernet 1/1/1

switchport trunk allowed vlan 1-49,51-4094

switchport mode trunk

!

Interface GigabitEthernet 1/1/2

switchport trunk allowed vlan 1-49,51-4094

switchport mode trunk

[Workaround]

Allow the EoMPLS vlan on the trunk on the ES ports.

HTH,

GNT

Community Member

Re: Etherchannel EoMPLS

Well, my configuration is a little bit different: I am doing PFC-based EoMPLS (without OSM), so I am doing the "xconnect" on a dot1q subinterface, not on a interface VLAN, and the VLANs area allowed on the trunks, BUT this problem appears when we have some outage on the network, like a backbone link flap or a crash (reload) on a PE-AGG (cat3550) connected to our 7600.

Thanks for your help.

Silver

Re: Etherchannel EoMPLS

Hi,

if your problem is essentially the EIGRP multicast, please try with unicast ('neighbor' command).

Please let me know

Andrea

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