R2511-HP MSR Router Series Layer 3 - IP Routing Configuration Guide(V5)
126
Dynamic host name mapping mechanism
The dynamic host name mapping mechanism provides the mappings between the host names and the
system IDs for the IS-IS routers. The dynamic host name information is announced in the dynamic host
name CLV of an LSP.
This mechanism also provides the mapping between a host name and the DIS of a broadcast network,
which is announced in the dynamic host name TLV of a pseudonode LSP.
A host name is easier to remember than a system ID. After enabling this feature on the router, you can see
the host names instead of system IDs by using the display command.
BFD
BFD provides a single mechanism to quickly detect any link failures between IS-IS neighbors to reduce
network convergence time.
For more information about BFD, see High Availability Configuration Guide.
Protocols and standards
• ISO 10589, ISO IS-IS Routing Protocol
• ISO 9542, ES-IS Routing Protocol
• ISO 8348/Ad2, Network Services Access Points
• RFC 1195 , Use of OSI IS-IS for Routing in TCP/IP and Dual Environments
• RFC 2763, Dynamic Hostname Exchange Mechanism for IS-IS
• RFC 2966, Domain-wide Prefix Distribution with Two-Level IS-IS
• RFC 2973, IS-IS Mesh Groups
• RFC 3277, IS-IS Transient Blackhole Avoidance
• RFC 3358, Optional Checksums in ISIS
• RFC 3373, Three-Way Handshake for IS-IS Point-to-Point Adjacencies
• RFC 3567, Intermediate System to Intermediate System (IS-IS) Cryptographic Authentication
• RFC 3719, Recommendations for Interoperable Networks using IS-IS
• RFC 3786, Extending the Number of IS-IS LSP Fragments Beyond the 256 Limit
• RFC 3787, Recommendations for Interoperable IP Networks using IS-IS
• RFC 3784, IS-IS extensions for Traffic Engineering
• RFC 3847, Restart signaling for IS-IS
IS-IS configuration task list
Task Remarks
Configuring IS-IS
basic functions
Enabling IS-IS
Required.
Configuring the IS level and circuit level
Configuring the network type of an interface as P2P
Configuring IS-IS
routing information
Configuring IS-IS link cost Optional.
Specifying a priority for IS-IS Required.