Configuration Tasks For Is-Is - Dell Z9500 Configuration Manual

NOTE: When using the IS-IS routing protocol to exchange IPv6 routing information and to determine destination
reachability, you can route IPv6 along with IPv4 while using a single intra-domain routing protocol. The configuration
commands allow you to enable and disable IPv6 routing and to configure or remove IPv6 prefixes on links.
Except where identified, the commands described in this chapter apply to both IPv4 and IPv6 versions of IS-IS.

Configuration Tasks for IS-IS

The following describes the configuration tasks for IS-IS.
• Enabling IS-IS
• Configure Multi-Topology IS-IS (MT IS-IS)
• Configuring IS-IS Graceful Restart
• Changing LSP Attributes
• Configuring the IS-IS Metric Style
• Configuring IS-IS Cost
• Changing the IS-Type
• Controlling Routing Updates
• Configuring Authentication Passwords
• Setting the Overload Bit
• Debuging IS-IS
Enabling IS-IS
By default, IS-IS is not enabled.
The system supports one instance of IS-IS. To enable IS-IS globally, create an IS-IS routing process and assign a NET address.
To exchange protocol information with neighbors, enable IS-IS on an interface, instead of on a network as with other routing
protocols.
In IS-IS, neighbors form adjacencies only when they are same IS type. For example, a Level 1 router never forms an adjacency
with a Level 2 router. A Level 1-2 router forms Level 1 adjacencies with a neighboring Level 1 router and forms Level 2
adjacencies with a neighboring Level 2 router.
NOTE: Even though you enable IS-IS globally, enable the IS-IS process on an interface for the IS-IS process to exchange
protocol information and form adjacencies.
To configure IS-IS globally, use the following commands.
1 Create an IS-IS routing process.
CONFIGURATION mode
router isis [tag]
tag: (optional) identifies the name of the IS-IS process.
2 Configure an IS-IS network entity title (NET) for a routing process.
ROUTER ISIS mode
net network-entity-title
Specify the area address and system ID for an IS-IS routing process. The last byte must be 00.
For more information about configuring a NET, refer to
3 Enter the interface configuration mode.
CONFIGURATION mode
interface interface
IS-IS Addressing.
Intermediate System to Intermediate System 463