Dell Force10 S4820T S4820T Configuration Guide - Page 521

Figure 25-2. Command Example: show isis protocol FTOS#show isis protocol IS-IS Router: System Id: EEEE.EEEE.EEEE IS-Type: level-1-2 Manual area address(es): 47.0004.004d.0001 Routing for area address(es): 21.2223.2425.2627.2829.3031.3233 47.0004.004d.0001 Interfaces supported by IS-IS: Vlan 2 GigabitEthernet 4/22 Loopback 0 Redistributing: Distance: 115 Generate narrow metrics: level-1-2 Accept narrow metrics: level-1-2 Generate wide metrics: none Accept wide metrics: none FTOS# Use the show isis traffic command in EXEC Privilege mode to view IS-IS protocol statistics. Figure 25-3. Command Example: show isis traffic FTOS#show isis traffic IS-IS: Level-1 Hellos (sent/rcvd) : 4272/1538 IS-IS: Level-2 Hellos (sent/rcvd) : 4272/1538 IS-IS: PTP Hellos (sent/rcvd) : 0/0 IS-IS: Level-1 LSPs sourced (new/refresh) : 0/0 IS-IS: Level-2 LSPs sourced (new/refresh) : 0/0 IS-IS: Level-1 LSPs flooded (sent/rcvd) : 32/19 IS-IS: Level-2 LSPs flooded (sent/rcvd) : 32/17 IS-IS: Level-1 LSPs CSNPs (sent/rcvd) : 1538/0 IS-IS: Level-2 LSPs CSNPs (sent/rcvd) : 1534/0 IS-IS: Level-1 LSPs PSNPs (sent/rcvd) : 0/0 IS-IS: Level-2 LSPs PSNPs (sent/rcvd) : 0/0 IS-IS: Level-1 DR Elections : 2 IS-IS: Level-2 DR Elections : 2 IS-IS: Level-1 SPF Calculations : 29 IS-IS: Level-2 SPF Calculations : 29 IS-IS: LSP checksum errors received : 0 IS-IS: LSP authentication failures : 0 FTOS# You can assign additional NET addresses, but the System ID portion of the NET address must remain the same. FTOS supports up to six area addresses. Some address considerations are: • In order to be neighbors, Level 1 routers must be configured with at least one common area address. • A Level 2 router becomes a neighbor with another Level 2 router regardless of the area address configured. However, if the area addresses are different, the link between the Level 2 routers is only at Level 2. Intermediate System to Intermediate System | 521