[10G/100G etherchannel]

[Carlos A. Silva]

Hi, all:

Just curious if on an XR box is possible to bundle a 10G and a 100G interface together. Will XR support it?

Is there a way to have, say a 100G uplink, and if growth is needed use 10G interfaces (several)? I'm thinking I could do this by using ABF (no bundles anywhere) and try to balance traffic based on source. Can anyone offer a different solution that's 100% dynamic?

Thanks,

c.

[Gregorio Bueno · Accepted solution]

hi Carlos,

The XR release 4.2.1 introduced the 10x (mixed) bandwidth. This means that a giga ethernet/10 giga ethernet interfaces can be aggregated in a bundle ethernet interface, or a 10 gig/100 giga.

you can find more information in the link below:

http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-2/general/release/notes/reln_421crs.html#concept_F9C0AFB0070D4B6191B3EF55161A6982

Regards,

Gregorio Bueno

[Carlos A. Silva]

Thanks, Gregorio. At least this gives me something to consider for my customer requirement. Sadly the information on that link, when compared to configuration guides, gets a little confusing.

I'll keep looking for more descriptive info. Thanks again.

[Carlos A. Silva]

No luck finding further info on this. Anybody out there has information explaining how load-balancing would work in, say, a 10G+100G bundle? (just one interface of each). To further describe the scenario, let's assume it's a CRS connected to an ASR9k.

[Sam Meftahi]

Better late than never

The weight of each bundle member is the ratio of its bandwidth to the lowest bandwidth member. Total weight of the bundle is the sum of weights or relative bandwidth of each bundle member. Since the weight for a bundle member is greater than or equal to 1 and less than or equal to 10, the total member of links in a bundle is less than 64 in mixed bundle case

https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k_r6-1/interfaces/configuration/guide/b-interfaces-cg-asr9k-61x/b-interfaces-cg-asr9k-61x_chapter_01000.html