IP Link-State Routing Protocols - CCIE Routing and Switching Exam Certification Guide - page 408

Example 8-26 Router 9 Routing Table, Protocol Configuration, Topology, and Database (Continued)
Outgoing update filter list for all interfaces is
Incoming update filter list for all interfaces is
Redistributing: static, isis
Address Summarization:
None
Routing for Networks:
Loopback0
Serial0
Ethernet0
Routing Information Sources:
Gateway Distance Last Update
192.16.100.1 115 00:04:02
192.16.100.3 115 00:04:02
Distance: (default is 115)
Router9#show isis topology
IS-IS paths to level-1 routers
System Id Metric Next-Hop Interface SNPA
Router10 40 Router10 Se0 *HDLC*
Router9 --
IS-IS paths to level-2 routers
System Id Metric Next-Hop Interface SNPA
Router10 10 Router10 Se0 *HDLC*
Router9 --
Router8 10 Router8 Et0 00e0.b064.6e49
Router9#
Router9#show isis database
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
Router10.00-00 0x000000D6 0x4E0C 820 0/0/0
Router9.00-00 * 0x000000DE 0xF943 1017 0/0/0
IS-IS Level-2 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
Router10.00-00 0x00000004 0x2F63 1012 0/0/0
Router9.00-00 * 0x000000DE 0xDBD2 1014 0/0/0
Router8.00-00 0x000000D5 0xA508 1062 0/0/0
Router8.01-00 0x000000D3 0xA060 848 0/0/0
The routing table for Router 9 shows L1 routes learned from Router 10 and L2 routes learned
from Router 8.
The output from the show ip protocols command displays information about the configured
IS-IS protocol and its tag value, cisco. The process redistributes static routes and runs on inter-
faces Loopback 0, Ethernet 0, and Serial 0. The IS is learning routes from 192.16.100.1 (Router 8)
and 192.16.100.3 (Router 10).