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Community Member

IOS XR redundancy on one ASR and 2 interfaces

What are my options for redundancy on one ASR, 2 interfaces. I know I  have options like HSRP and VRRP but I am looking for something I can do  between two interfaces on the same router.

Perhaps policy routing is my solution. I have to do some more research  on IOS XR. What do you guys think?

3 REPLIES
Hall of Fame Super Silver

Re: IOS XR redundancy on one ASR and 2 interfaces

Hello Mark,

check if IRB integrated routing and bridging can be used in that case the L3 config will be on a BVI interface and the interfaces are associated to the bridge-group.

Hope to help

Giuseppe

Cisco Employee

Re: IOS XR redundancy on one ASR and 2 interfaces

Hi,

IRB is not yet supported on XR. What about link-bundling ?

HTH

Laurent.

Community Member

Re: IOS XR redundancy on one ASR and 2 interfaces

Exactly. Link bundling - or Ethernet's LAG - or Cisco's EtherChannel

is supported on IOS-XR since 3.7.2+.  The options are actually quite plenti

ful and allow for either standard LACP load balancing options or newer 1:1 settings.

Please note, the 1:1 settings only allow 1 active and 1 standby, but the regular LACP option allows for up to 8 active with 32 inactive members.

The nice thing about this is that LAG is a IEEE standard and not a Cisco standard so interoperability is more likely with another service provider that uses other than Cisco.

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