bgp-infinite-aspath: rename routers and minimalize configuration

vincentbernat · vincentbernat · commit 7f051b1f3889 · 2024-07-14T09:44:45.000+02:00
diff --git a/lab-bgp-infinite-aspath/README.md b/lab-bgp-infinite-aspath/README.md
@@ -3,21 +3,21 @@
 Combining confederations and as-override is a recipe for disaster:
 
 ```
-RP/0/RP0/CPU0:R1#show bgp ipv6 u 2001:db8::2/128
-Sat Jul 13 21:24:30.988 UTC
-BGP routing table entry for 2001:db8::2/128
+RP/0/RP0/CPU0:R2#show bgp ipv6 u 2001:db8::1/128
+Sun Jul 14 07:44:20.896 UTC
+BGP routing table entry for 2001:db8::1/128
 Versions:
   Process           bRIB/RIB  SendTblVer
-  Speaker                 102          102
-Last Modified: Jul 13 21:24:29.412 for 00:00:01
+  Speaker                  38           38
+Last Modified: Jul 14 07:44:19.859 for 00:00:01
 Paths: (1 available, best #1)
   Advertised IPv6 Unicast paths to peers (in unique update groups):
-    2001:db8::3:0
+    2001:db8::3:1
   Path #1: Received by speaker 0
   Advertised IPv6 Unicast paths to peers (in unique update groups):
-    2001:db8::3:0
-  (65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65401 65400 65400)
-    2001:db8::1:0 from 2001:db8::1:0 (1.0.0.4)
-      Origin incomplete, metric 0, localpref 100, valid, confed-external, best, group-best
-      Received Path ID 0, Local Path ID 1, version 102
+    2001:db8::3:1
+  (64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64501 64503 64500)
+    2001:db8::2:0 from 2001:db8::2:0 (1.0.0.3)
+      Origin IGP, metric 0, localpref 100, valid, confed-external, best, group-best
+      Received Path ID 0, Local Path ID 1, version 38
 ```
diff --git a/lab-bgp-infinite-aspath/cisco-C0.conf b/lab-bgp-infinite-aspath/cisco-C0.conf
diff --git a/lab-bgp-infinite-aspath/cisco-C1.conf b/lab-bgp-infinite-aspath/cisco-C1.conf
diff --git a/lab-bgp-infinite-aspath/cisco-R0.conf b/lab-bgp-infinite-aspath/cisco-R0.conf
@@ -0,0 +1,22 @@
+interface Loopback0
+ ipv6 address 2001:db8::1/128
+interface GigabitEthernet0/0/0/0
+ no shut
+interface GigabitEthernet0/0/0/0.101
+ ipv6 address 2001:db8::1:0/127
+ encapsulation dot1q 101
+!
+router bgp 64500
+ bgp confederation peers
+  64501
+  64502
+  64503
+ bgp confederation identifier 64496
+ bgp router-id 1.0.0.4
+ timers bgp 10 30
+ address-family ipv6 unicast
+  network 2001:db8::1/128
+ neighbor 2001:db8::1:1
+  remote-as 64501
+  address-family ipv6 unicast
+!
diff --git a/lab-bgp-infinite-aspath/cisco-R1.conf b/lab-bgp-infinite-aspath/cisco-R1.conf
@@ -3,26 +3,31 @@ interface GigabitEthernet0/0/0/0
 interface GigabitEthernet0/0/0/0.101
  ipv6 address 2001:db8::1:1/127
  encapsulation dot1q 101
-interface GigabitEthernet0/0/0/0.103
- ipv6 address 2001:db8::3:1/127
- encapsulation dot1q 103
+interface GigabitEthernet0/0/0/0.102
+ ipv6 address 2001:db8::2:0/127
+ encapsulation dot1q 102
+interface GigabitEthernet0/0/0/0.104
+ ipv6 address 2001:db8::4:1/127
+ encapsulation dot1q 104
 !
-router bgp 65500
+router bgp 64501
  bgp confederation peers
-  65400
-  65401
- bgp router-id 1.0.0.1
- timers bgp 10 30
+  64500
+  64502
+  64503
  bgp confederation identifier 64496
+ bgp router-id 1.0.0.3
  address-family ipv6 unicast
  neighbor 2001:db8::1:0
-  remote-as 65400
+  remote-as 64500
   address-family ipv6 unicast
-   next-hop-self
- neighbor 2001:db8::3:0
-  remote-as 65401
+ neighbor 2001:db8::2:1
+  remote-as 64502
   advertisement-interval 0
   address-family ipv6 unicast
-   as-override
    next-hop-self
+   as-override
+ neighbor 2001:db8::4:0
+  remote-as 64503
+  address-family ipv6 unicast
 !
diff --git a/lab-bgp-infinite-aspath/cisco-R2.conf b/lab-bgp-infinite-aspath/cisco-R2.conf
@@ -1,28 +1,27 @@
-interface Loopback0
- ipv6 address 2001:db8::2/128
 interface GigabitEthernet0/0/0/0
  no shut
 interface GigabitEthernet0/0/0/0.102
  ipv6 address 2001:db8::2:1/127
  encapsulation dot1q 102
+interface GigabitEthernet0/0/0/0.103
+ ipv6 address 2001:db8::3:0/127
+ encapsulation dot1q 103
 !
-router bgp 65500
+router bgp 64502
  bgp confederation peers
-  65400
-  65401
- bgp router-id 1.0.0.5
- timers bgp 10 30
+  64500
+  64501
+  64503
+ bgp router-id 1.0.0.1
  bgp confederation identifier 64496
  address-family ipv6 unicast
-  redistribute connected route-policy connected_to_bgp
  neighbor 2001:db8::2:0
-  remote-as 65400
+  remote-as 64501
   address-family ipv6 unicast
+ neighbor 2001:db8::3:1
+  remote-as 64503
+  advertisement-interval 0
+  address-family ipv6 unicast
+   as-override
    next-hop-self
 !
-route-policy connected_to_bgp
- if destination in (2001:db8::2/128) then
-  done
- endif
- drop
-end-policy
diff --git a/lab-bgp-infinite-aspath/cisco-R3.conf b/lab-bgp-infinite-aspath/cisco-R3.conf
@@ -0,0 +1,26 @@
+interface GigabitEthernet0/0/0/0
+ no shut
+interface GigabitEthernet0/0/0/0.103
+ ipv6 address 2001:db8::3:1/127
+ encapsulation dot1q 103
+interface GigabitEthernet0/0/0/0.104
+ ipv6 address 2001:db8::4:0/127
+ encapsulation dot1q 104
+!
+router bgp 64503
+ bgp confederation peers
+  64500
+  64501
+  64502
+ bgp router-id 1.0.0.2
+ bgp confederation identifier 64496
+ address-family ipv6 unicast
+ neighbor 2001:db8::3:0
+  remote-as 64502
+  address-family ipv6 unicast
+ neighbor 2001:db8::4:1
+  remote-as 64501
+  advertisement-interval 2
+  address-family ipv6 unicast
+   as-override
+   next-hop-self
diff --git a/lab-bgp-infinite-aspath/setup b/lab-bgp-infinite-aspath/setup
@@ -5,9 +5,9 @@ cd "$(dirname "$(readlink -f "$0")")"
 
 SWITCH_MON=1
 
-spawn cisco-iosxrv C0 network 1
-spawn cisco-iosxrv C1 network 1
+spawn cisco-iosxrv R0 network 1
 spawn cisco-iosxrv R1 network 1
 spawn cisco-iosxrv R2 network 1
+spawn cisco-iosxrv R3 network 1
 
 run
