385
routing tables do not contain the VPN routes that the customer carrier maintains. Take CE 1 as an
example:
[CE1] display ip routing-table
Routing Tables: Public
Destinations : 16 Routes : 16
Destination/Mask Proto Pre Cost NextHop Interface
1.1.1.9/32 ISIS 15 10 10.1.1.2 Vlan12
2.2.2.9/32 Direct 0 0 127.0.0.1 InLoop0
5.5.5.9/32 ISIS 15 74 11.1.1.2 Vlan11
6.6.6.9/32 ISIS 15 74 11.1.1.2 Vlan11
10.1.1.0/24 Direct 0 0 10.1.1.2 Vlan12
10.1.1.1/32 Direct 0 0 10.1.1.1 Vlan12
10.1.1.2/32 Direct 0 0 127.0.0.1 InLoop0
11.1.1.0/24 Direct 0 0 11.1.1.1 Vlan11
11.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
11.1.1.2/32 Direct 0 0 11.1.1.2 Vlan11
20.1.1.0/24 ISIS 15 74 11.1.1.2 Vlan11
21.1.1.0/24 ISIS 15 74 11.1.1.2 Vlan11
21.1.1.2/32 ISIS 15 74 11.1.1.2 Vlan11
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
# Issue the
display ip routing-table
command on PE 3 and PE 4. You can see that the internal
routes of the customer carrier network are present in the public network routing tables. Take PE 3
as an example:
[PE3] display ip routing-table
Routing Tables: Public
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost NextHop Interface
1.1.1.9/32 Direct 0 0 127.0.0.1 InLoop0
2.2.2.9/32 ISIS 15 10 10.1.1.2 Vlan12
5.5.5.9/32 ISIS 15 84 10.1.1.2 Vlan12
6.6.6.9/32 ISIS 15 84 10.1.1.2 Vlan12
10.1.1.0/24 Direct 0 0 10.1.1.1 Vlan12
10.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
10.1.1.2/32 Direct 0 0 10.1.1.2 Vlan12
11.1.1.0/24 ISIS 15 20 10.1.1.2 Vlan12
20.1.1.0/24 ISIS 15 84 10.1.1.2 Vlan12
21.1.1.0/24 ISIS 15 84 10.1.1.2 Vlan12
21.1.1.2/32 ISIS 15 84 10.1.1.2 Vlan12
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
# PE 3 and PE 4 can ping each other:
[PE3] ping 20.1.1.2
PING 20.1.1.2: 56 data bytes, press CTRL_C to break
Reply from 20.1.1.2: bytes=56 Sequence=1 ttl=252 time=127 ms
Reply from 20.1.1.2: bytes=56 Sequence=2 ttl=252 time=97 ms
Reply from 20.1.1.2: bytes=56 Sequence=3 ttl=252 time=83 ms
Reply from 20.1.1.2: bytes=56 Sequence=4 ttl=252 time=70 ms