01-26-2022 12:05 AM
Hello, regarding: Evpn using load-balancing flow-label static (signalled is not an option in ios-xr) on top of MPLS.
Any experience on running evpn and flow (aka fat) label in ios-xr, I enabled it in the lab but got quite strange behaviour, sometimes it's working and sometimes it's not , so writing a post here to try to sort out if its supported, on what hardware and softare before doing further analysis/testing in the lab.
evpn
evi 1234
bgp
route-target import 1234:123400
route-target export 1234:123400
!
load-balancing
flow-label static
!
advertise-mac
!
!
source interface Loopbackx
!
Platforms/ios-xr version
ASR9K RSP440/880 Tomahawk och typhoon. 6.4.2/6.7.3
NCS55A2 (j+)7.4.1
NCS540 (qumran) 7.4.1
NCS57C4 (j2c) 7.4.1
PS works pretty good without " load-balancing flow-label static"
regards Jonas
01-27-2022 09:52 AM
there are a few restrictions that you need to be aware of
To configure flow label for EVPN VPWS, the following restrictions are applicable: * This feature is not supported for EVPN Point-to-Multipoint (P2MP) of VPLS and Ethernet LAN (E-LAN) service. * This feature is supported only for EVPN VPWS single homing. AC bundle interfaces must be configured with ESI-0 only. * This feature is not supported for EVPN flexible cross-connect service. * This feature is not supported for EVPN VPWS multihoming.
01-27-2022 10:21 AM
Hi tkarnani and thank you for the information provided, that explains the results in the lab.
rgs
Jonas
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