Chapter 8 IS-ISv6 Configuration
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
0000.0010.0022
10
0000.0010.0022
vlan10
00D0.D0AF.CC10
0000.1122.1155 --
IS-IS IPv6 paths to Level-2 routers
System id
Metric
Next-Hop
Interface
SNPA
0000.0010.0022
10
0000.0010.0022
vlan10
00D0.D0AF.CC10
0000.1122.1155
–
Run the command
show isis circuits
to check the interface information and Designate IS
(
) election. If the interface status is "UP", the interface is normal. If the interface status
is "DOWN", the interface is abnormal. Then it is necessary to check the link status. The
Level1-DR item shows the system-id of the DIS.
ZXR10_S1#show isis circuits
IS-IS interface database:
Interface
State Lev
CirId Level1-DR
Level2-DR
Pri(L1/L2)
loopback5
Up
L1L2 0
No found
No found
64/64
vlan10
Up
L1L2 6
0000.0000.0010-03 0000.0000.0010-03 64/64
Run the command
show ipv6 forwarding route isis_l1
or
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_l1
IPv6 Routing Table:
Dest
Owner
Metric
Interface
Gw
3550::/64
isis_l1
20
vlan10
fe80:12::2d0:d0ff:feaf:cc10
If neighbor establishment and route advertisement are normal, the loopback interface of
the peer route can be pinged through:
ZXR10_S1#ping6 3550::55
sending 5,100-byte ICMP echoes to 3550::55,timeout is 2 seconds.
!!!!!
Success rate is 100 percent(5/5),round-trip min/avg/max= 0/0/0 ms.
Similarly, verify the configuration results on S2 as follows:
ZXR10_S2#show running-config isis
! <ISIS>
router isis
area 47.0005
system-id 0000.0000.0010
metric-style wide
address-family ipv6
multi-topology
8-21
SJ-20150114102049-011|2015-01-15 (R1.0)
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