I have GSR12404 with PRP-2 SIP-501 SPA-5X1GE-V2 with ISO XR 3.5.3
When I try to configure ETHERCHANNEL feature and commit, router prints out this message
(and this happens even if I configure ONLY interface bundle-ether 1):
RP/0/0/CPU0:(config)#sh configuration failed !! CONFIGURATION FAILED DUE TO SEMANTIC ERRORS interface Bundle-Ether10 !!% Config conflicts with the bundle interface. Please refer to configuration documentation for further assistance. bundle minimum-active links 1 !!% Config conflicts with the bundle interface. Please refer to configuration documentation for further assistance. ! end.
I checked command reference and I didn't find reasons for this message.
I thought link bundling is supported on GSR 12000 series with IOS XR.
Does anyone knows if link bundle (etherchannel) on GSR with IOS XR can be configured?
>> Why do you prefer two layer 3 links over Etherchannel?
I prefer the use of parallel L3 links because experience with L3 etherchannel on Routers may provide some drawbacks:
years ago on 12000 with IOS 12.0S using a bundle was possible with some linecards unfortunately netflow accounting was not working at all as a result of this for more then one year it wasn't possible to collect traffic flow information in one of the most important european exchange points.
last year in IOS XR I had issue with MPLS after having applied LDP filtering in order to have LDP bindings : this caused an unexpected black holing of a VOIP IP subnet and the problem was located in a GE bundle between two IOS XR GSRs
This is my personal experience and my opinion on this.
In your case I would enforce with the other provider that your device is currently not supporting GE bundling so the use of a loopback for eBGP multipath should be considered again as suggested by Mahil
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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