Cisco NCS 540 Series

Route Distinguisher: 2001:1601 (default for vrf vrf1601)
*> 20.13.1.1/32 192.13.26.5 0 7501 i
*> 20.13.1.2/32 192.13.26.5 0 7501 i
*>i20.23.1.1/32 20.20.20.1 100 0 6553700 11501 i
*>i20.23.1.2/32 20.20.20.1 100 0 6553700 11501 i
• Verify BGP labels:
Router-PE1#show bgp label table
Label Type VRF/RD Context
24041 IPv4 VRF Table vrf1601 -
24042 IPv4 VRF Table vrf1602 -
• Verify if the route is downloaded in the respective VRF:
Router-PE1#show cef vrf vrf1601 20.23.1.1
20.23.1.1/32, version 743, internal 0x5000001 0x0 (ptr 0x8f932174) [1], 0x0 (0x8fa99990),
0xa08 (0x8f9fba58)
Updated Apr 20 12:33:47.840
Prefix Len 32, traffic index 0, precedence n/a, priority 3
via 20.20.20.1/32, 3 dependencies, recursive [flags 0x6000]
path-idx 0 NHID 0x0 [0x8c0e3148 0x0]
recursion-via-/32
next hop VRF - 'default', table - 0xe0000000
next hop 20.20.20.1/32 via 24039/0/21
next hop 191.23.1.2/32 Hu0/0/1/1 labels imposed {24059 24031}
Disposition Path
• Verify if the imposition and disposition labels are assigned and label bindings are exchanged for L3VPN
prefixes:
Router-PE2#show mpls lsd forwarding
In_Label, (ID), Path_Info: <Type>
24030, (IPv4, 'default':4U, 13.13.13.1/32), 5 Paths
1/1: IPv4, 'default':4U, Hu0/0/1/0.2, nh=191.31.1.93, lbl=24155,
flags=0x0, ext_flags=0x0
24031, (VPN-VRF, 'vrf1601':4U), 1 Paths
1/1: PopLkup-v4, 'vrf1601':4U, ipv4
24032, (VPN-VRF, 'vrf1602':4U), 1 Paths
1/1: PopLkup-v4, 'vrf1602':4U, ipv4
• Verify if the label update is received by the FIB:
Router-PE2#show mpls forwarding
Local Outgoing Prefix Outgoing Next Hop Bytes
Label Label or ID Interface Switched
------ ----------- ------------------ ------------ --------------- ------------
24019 Pop 18.18.18.3/32 Hu0/0/1/0 191.31.1.89 11151725032
24030 24155 13.13.13.1/32 Hu0/0/1/0 191.31.1.89 3639895
24031 Aggregate vrf1601: Per-VRF Aggr[V] \
L3VPN Configuration Guide for Cisco NCS 540 Series Routers, IOS XR Release 6.3.x
29
MPLS L3VPN Overview
Verify the Overlay (L3VPN)