Chapter 8 IS-ISv6 Configuration
interface loopback1
ipv6 router isis
circuit-type level-2-only
$
interface loopback2
ipv6 router isis
circuit-type level-2-only
$
interface loopback3
ipv6 router isis
circuit-type level-2-only
$
! </ISIS>
Run the command
show isis adjacency
to check whether the neighbor status is normal, that
is, check whether the state field is UP. After the neighbor is established, the state field
should indicate "UP":
ZXR10_S1#show isis adjacency
Interface
System id
State Lev Holds
SNPA(802.2)
Pri MT
vlan10
0000.0000.0012 UP
L2
7
00D0.D078.99D2
64
M
Run the command
show isis ipv6 topology
to check whether the topology is correctly
computed (For the single-topology environment, run the command
show isis topology
instead to check it). If the topology has been successfully computed, the execution results
will indicate the following item. If the metric is "–", it indicates the local router. If the metric
is "xx", it indicates that the destination is unreachable.
ZXR10_S1#show isis ipv6 topology
IS-IS IPv6 paths to Level-1 routers
System id
Metric
Next-Hop
Interface
SNPA
0000.0000.0011 --
IS-IS IPv6 paths to Level-2 routers
System id
Metric
Next-Hop
Interface
SNPA
0000.0000.0012 10
0000.0000.0012
vlan10
00D0.D078.99D2
0000.0000.0013 20
0000.0000.0012
vlan10
00D0.D078.99D2
0000.0000.0011
–
Run the command
show ipv6 forwarding route isis_l2
to check route advertisement. If route
advertisement is normal, the route advertised by the loopback interface of the peer router
can be seen.
ZXR10_S1#show ipv6 forwarding route isis_l2
IPv6 Routing Table:
Dest
Owner
Metric Interface
Gw
2001::/64
isis_l2
10
vlan10
fe80:2e::2d0:d0ff:fe78:99d2
2300::/64
isis_l2
20
vlan10
fe80:2e::2d0:d0ff:fe78:99d2
2400::/64
isis_l2
30
vlan10
fe80:2e::2d0:d0ff:fe78:99d2
8-27
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