Table of Contents
Advertisement
Cost: 1
IpPre: N/A
Tag: 0
OrigTblID: 0x0
TableID: 0xa
NibID: 0x23000006
AttrID: 0xffffffff
Flags: 0x10041
Label: NULL
BkLabel: NULL
Tunnel ID: Invalid
BkTunnel ID: Invalid
FtnIndex: 0x0
Connector: N/A
Configuring IPv6 IS-IS
Overview
IPv6 IS-IS supports all IPv4 IS-IS features except that it advertises IPv6 routing information. This
chapter describes only IPv6 IS-IS specific configuration tasks. For information about IS-IS, see
"Configuring
Intermediate System-to-Intermediate System (IS-IS) supports multiple network protocols, including
IPv6. To support IPv6, the IETF added two type-length-values (TLVs) and a new network layer
protocol identifier (NLPID).
The TLVs are as follows:
•
IPv6 Reachability—Contains routing prefix and metric information to describe network
reachability and has a type value of 236 (0xEC).
•
IPv6 Interface Address—Same as the "IP Interface Address" TLV in IPv4 ISIS, except that the
32-bit IPv4 address is translated to the 128-bit IPv6 address.
The new NLPID is an 8-bit field that identifies which network layer protocol is supported. For IPv6,
the NLPID is 142 (0x8E), which must be carried in hello packets sent by IPv6 IS-IS.
Configuring basic IPv6 IS-IS
Before you configure basic IPv6 IS-IS, complete the following tasks:
•
Configure IPv6 addresses for interfaces to ensure IPv6 connectivity between neighboring
nodes.
•
Enable IS-IS.
Basic IPv6 IS-IS configuration can implement the interconnection of IPv6 networks.
To configure basic IPv6 IS-IS:
Step
1.
Enter system view.
2.
Enable an IS-IS process and
enter IS-IS view.
Preference: 10
QosLocalID: N/A
OrigNextHop: FE80::34CC:E8FF:FE5B:C02
RealNextHop: FE80::34CC:E8FF:FE5B:C02
BkNextHop: FE80::7685:45FF:FEAD:102
Interface: Vlan-interface200
BkInterface: Vlan-interface101
TrafficIndex: N/A
IS-IS."
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
State: Active Adv
OrigVrf: default-vrf
OrigAs: 0
LastAs: 0
Neighbor: ::
473
Remarks
N/A
By default, no IS-IS process is
enabled.
Advertisement
Table of Contents
Troubleshooting
