I would test this for load-sharing with your traffic profile. It's been a while since I looked at this but I think the port channel hashing criteria is limited when xconnect terminates to a port-channel.
If I remember correctly we cannot do port channel hash on IP header when coming off an EoMPLS tunnel. So if all/alot of traffic has same MAC then you will get sub-optimal load-sharing. -Ben -Ben On Jul 14, 2010, at 7:46 AM, Peter Rathlev wrote: > Hi, > > Would anybody have any comments on doing port-mode EoMPLS xconnects on > port-channels on Sup720 running SXI? > > We're contemplating delivering EoMPLS PtP this way. In or "normal" setup > we connect a "switchport trunk" from the downlink device to a port-mode > EoMPLS-port, plain and simple. > > My guess is that there's nothing wrong with doing this via port-channels > instead. It seems to work, and the documentation hints at it being > supported[1] but is it a bad idea for some reason? > > Example configuration from the "normal" setup: > > ! *** CE device *** > interface GigabitEthernet0/24 > description Uplink to PE1 Gi1/1 > switchport trunk encapsulation dot1q > switchport mode trunk > switchport nonegotiate > ! > > ! *** PE device *** > interface GigabitEthernet1/1 > description Downlink to CE1 Gi0/24 > mtu 9216 > no ip address > udld port disable > xconnect 192.0.2.10 1234 encapsulation mpls > ! > > We would like to do something like this: > > ! *** CE device *** > interface GigabitEthernet0/23 > description Uplink to PE1 Gi1/1 > switchport trunk encapsulation dot1q > switchport mode trunk > switchport nonegotiate > channel-group 1 mode on > ! > interface GigabitEthernet0/24 > description Uplink to PE1 Gi1/2 > switchport trunk encapsulation dot1q > switchport mode trunk > switchport nonegotiate > channel-group 1 mode on > ! > interface Port-channel1 > description Uplink to PE1 Po1 > switchport trunk encapsulation dot1q > switchport mode trunk > switchport nonegotiate > ! > > ! *** PE device *** > interface GigabitEthernet1/1 > description Downlink to CE1 Gi0/23 > no ip address > channel-group 1 mode on > ! > interface GigabitEthernet1/2 > description Downlink to CE1 Gi0/24 > no ip address > channel-group 1 mode on > ! > interface Port-channel1 > description Downlink to CE1 Po1 > no ip address > xconnect 192.0.2.10 1234 encapsulation mpls > ! > > This is without relevant MTU adjustments and so on. Just the EoMPLS > configuration. > > [1]: Catalyst 6500 Release 12.2SXH and Later Software Configuration > Guide, Configuring Multiprotocol Label Switching > http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/pfc3mpls.html > > -- > Peter > > > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
