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in IOS XE (and also XR if you want to), you need to use hex value to define affinity (admin group) for link colouring in RSVP-TE.since you can only configure one affinity per interface and one affinity/mask pair per LSP, does that mean the mask match...
for BGP LU between two IOS XR nodes, ICMP reachability between advertised prefixes is lost once allocate-label all is configured. labels seem to be allocated properly.configuring unicast together with LU seems to make no difference although two copie...
in inter-AS VPN option C, we can use RRs of different ASes to peer with each other instead of PEs.when used in EVPN, IOS XE as RR must configure 'next-hop-unchanged' which makes it out of band or the forwarding will not work despite type 2 and 3 rout...
in all-active multihomed L2 EVPN, the failover time seems to be quite slow as tested with IOS XE by disconnecting attachment curcuit. below is ping from CE.
static LAG: (both PEs are 'DF state: forwarding')
!!!!!!!...*Mar 10 15:39:45.723: %LINK-3-UPD...
in normal L3VPN, we need to advertise the attachment circuit IP segment to remote PE for CE connectivity.
however in 6VPE, this is not needed and the segment appears automatically on remote PE.
this is consistent in IOS XE, XR, and Junos.
is it becau...
another observation i've made is that affinity on the interface does take effect if 'mpls traffic-eng' is not configured.this command is mandatory in ISIS for SR but optional in OSPF if you don't need CSPF apparently.does that mean OSPF can fall back...
not sure if my interpretation is correct:R1(config)#interface GigabitEthernet 0/0/0R1(config-if)#mpls traffic-eng attribute-flags 0x15R1(config)#interface GigabitEthernet 0/0/1R1(config-if)#mpls traffic-eng attribute-flags 0x10R1(config)#interface Tu...
that's nice insight into IOS XR. many thanks.version is 7.5.2 whereas bahaviour appears consistent when tested in dcloud.note that in IOS XE, there are two modes of LU routes handling: equivalent and unique. equivalent mode is basically LU only sinc...
so in other words, they can't be used simultaneously?IOS XE seems to be fine where it must run both at the same time and they also share the same RIB.for Junos, if you run labeled unicast alone, it can also forward unicast and they share the same RIB...
they can reach each other, just not by ICMP.OSPF and LDP are run in both ASes.multihop session comes up accordingly, and VRF routes exchange and forward properly.adding unicast family can let the ASBRs learn the unicast routes from each other's AS if...
