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--- network_stuff:arista:mpls [2023/05/03 17:06] – jotasandoku
+++ network_stuff:arista:mpls [2025/04/13 13:36] (current) – jotasandoku
@@ Line 2: / Line 2: @@
 TODO
 ----
-MPLS SEGMENT ROUTING NOTES (SR-MPLS NOTES)
+MPLS SEGMENT ROUTING NOTES (SRv6)
+\\
+think of SRv6–using IPv6 addresses as segment IDs, and breaking the least significant /64 to create microsids for service differentiation
 \\
 Is mostly MPLS but:
@@ Line 107: / Line 109: @@
   show mpls lfib route    # arista only labels for lo. You'll only see transport labels here
   show bgp vpn-ipv4 172.16.0.0/24 detail # this is for the vpnv4 of the customer prefix 172
+  !
+  pe1#show bgp vpn-ipv4 172.16.2.0/24 detail
+  BGP routing table information for VRF default
+  Router identifier 10.0.0.1, local AS number 65000
+  BGP routing table entry for IPv4 prefix 172.16.2.0/24, Route Distinguisher: 65000:2
+   Paths: 1 available
+    Local
+.0.0.2 from 10.0.0.2 (10.0.0.2)
+        Origin IGP, metric -, localpref 100, weight 0, valid, internal, best
+        Extended Community: Route-Target-AS:65000:2
+        Remote MPLS label: 100001    <<< the vpnv4 label for 172.16.2.0/24
+  !
   traceroute mpls ldp ip 10.0.0.1/32    # this shows the swapping of the transport label
   show mpls ldp neighbord    # luk lesson 2.3
   show mpls ldp bindings     # luk lesson 2.3

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