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Beginner

Segment Routing is different by products?

Dear all,

 

I think currently Cisco's major SR supported product is IOS-XR right?

Because there is a lot of configuration examples easy to understand and some dCloud scenario which normally IOS-XR configuration and operation.

 

However in my understanding, other products such as ASR1K IOS-XE and Nexus3K/9K NX-OS also support but it is pretty difficult to confirm the feature difference. I appreciate if there is any pros and cons on the following products.


1.Cisco ASR9K/NCS - IOS-XR
<https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/segment-routing/configuration/guide/b-seg-routing-cg-asr9k.html>

 

2.Cisco ASR1K - IOS-XE
<https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/seg_routing/configuration/xe-16-12/segrt-xe-16-12-book/use-sr-is-is.html#con_1058322>

 

3.Cisco Nexus3K/9K - NX-OS
<https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3000/sw/label_switching/7x/b_Cisco_Nexus_3000_Series_NX-OS_Label_Switching_Configuration_Guide_7x/b_Cisco_Nexus_3000_Series_NX-OS_Label_Switching_Configuration_Guide_7x_chapter_0101.html#...>

 

<https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/label-switching/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_Label_Switching_Configuration_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_Label_Switching_Configuration_Guide_...>

 

As for the Segment Routing, I think if I can understand the following technical keyword, then it is much easier to explain for the customers who are interested in SR or equivalent demand.

 

Technical Keyword:

 SR-MPLS(RSVP/LDP)
 SR-MPLS(IGP)
 SRv6

 BGP-LU for interdomain between DC/Metro/WAN
 RSVP-TE to SR-TE

 On-Demand Next Hop

 Enhanced FRR (TI-LFA)
 SR-PCE(SDN) for total solution (Network Programming)
 RFC Standard Connection with third party product

 

Best Regards,

 

Masanobu Hiyoshi

 

1 REPLY 1
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Cisco Employee

 

 


Hello,


generally speaking, SR core technology is supported on all the aforementioned platforms along with SR-TE functionality.
Being used mostly in SP underlay, a solid set of sub-features was destined to XR.
This doesn't translate in lack of supported features for other platforms though.
There are some minor differences of course, but i would not personally think about those in terms of pros and cons.

 

Regards

 

 

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