Differences

This shows you the differences between two versions of the page.

router2differentareas [2009/09/13 14:37] (current)
Line 1: Line 1:
 +===With the ''show version'' command the IOS version information and router information are shown===
 +
 +[[https://m1k3.kicks-ass.org/isis_wiki/doku.php?id=router1|The same output as router 2 in the lesson "ISIS point to point configuration with two routers in the same area". ]]
 +
 +===With the ''show controllers serial 0/0'' command you can find out if the router is DTE or DCE:===
 +
 +[[https://m1k3.kicks-ass.org/isis_wiki/doku.php?id=router1|The same output as router 2 in the lesson "ISIS point to point configuration with two routers in the same area". ]]
 +
 +===With the ''show running-config''command you can display your current router configuration:===
 +
 +<code>
 +RT2#show running-config
 +Building configuration...
 +*
 +*
 +*
 +!
 +router isis
 + net 49.0002.0000.0000.0002.00
 +!
 +*
 +*
 +*
 +</code>
 +
 +
 +===show & debugging commands:===
 +
 +== With the ''show clns neighbors'' command you can verify the adjacencies you have. In this output you can see that router RT1 is a neighbor to router RT2 ==
 +
 +<code>
 +RT2#show clns neighbors
 +
 +System Id      Interface  SNPA                State  Holdtime  Type Protocol
 +RT1            Se0/0      *PPP*              Up    23        L2  IS-IS
 +</code>
 +
 +== With the ''show clns protocol'' command you can verify the system ID, the area address and the IS type ==
 +
 +<code>
 +RT2#show clns protocol
 +
 +IS-IS Router: <Null Tag>
 +  System Id: 0000.0000.0002.00  IS-Type: level-1-2
 +  Manual area address(es):
 +        49.0002
 +  Routing for area address(es):
 +        49.0002
 +  Interfaces supported by IS-IS:
 +        Serial0/0 - IP
 +        Loopback0 - IP
 +  Redistribute:
 +    static (on by default)
 +  Distance for L2 CLNS routes: 110
 +  RRR level: none
 +  Generate narrow metrics: level-1-2
 +  Accept narrow metrics:  level-1-2
 +  Generate wide metrics:  none
 +  Accept wide metrics:    none
 +</code>
 +
 +== With the ''show isis database'' command you can display the different Link State Packet entries in the IS-IS database ==
 +
 +<code>
 +RT2#show isis database
 +
 +IS-IS Level-1 Link State Database:
 +LSPID                LSP Seq Num  LSP Checksum  LSP Holdtime      ATT/P/OL
 +RT1.00-00            0x00000009  0xA0F6        115              0/0/0
 +RT2.00-00          * 0x0000000B  0x8D93        1145              1/0/0
 +IS-IS Level-2 Link State Database:
 +LSPID                LSP Seq Num  LSP Checksum  LSP Holdtime      ATT/P/OL
 +RT1.00-00            0x0000000E  0x305E        417              0/0/0
 +RT2.00-00          * 0x0000000D  0xEAA1        1160              0/0/0
 +</code>
 +
 +== The ''show isis topology'' shows the metric value, the level hierarchy and where the Next-hop router is. The serial encapsulation protocol is PPP ==
 +
 +<code>
 +RT2#show isis topology
 +
 +IS-IS paths to level-1 routers
 +System Id            Metric  Next-Hop              Interface  SNPA
 +RT1                  **
 +RT2                  --
 +
 +IS-IS paths to level-2 routers
 +System Id            Metric  Next-Hop              Interface  SNPA
 +RT1                  10      RT1                  Se0/0      *PPP*
 +
 +RT2                  --
 +</code>
 +
 +== ????????????????????????????????????????????? ==
 +
 +<code>
 +RT2#show clns interface
 +FastEthernet0/0 is administratively down, line protocol is down
 +  CLNS protocol processing disabled
 +Serial0/0 is up, line protocol is up
 +  Checksums enabled, MTU 1500, Encapsulation PPP
 +  ERPDUs enabled, min. interval 10 msec.
 +  RDPDUs enabled, min. interval 100 msec., Addr Mask enabled
 +  Congestion Experienced bit set at 4 packets
 +  CLNS fast switching enabled
 +  CLNS SSE switching disabled
 +  DEC compatibility mode OFF for this interface
 +  Next ESH/ISH in 31 seconds
 +  Routing Protocol: IS-IS
 +    Circuit Type: level-1-2
 +    Interface number 0x1, local circuit ID 0x100
 +    Neighbor System-ID: RT1
 +    Level-1 Metric: 10, Priority: 64, Circuit ID: RT2.00
 +    Number of active level-1 adjacencies: 0
 +    Level-2 Metric: 10, Priority: 64, Circuit ID: RT2.00
 +    Number of active level-2 adjacencies: 1
 +    Next IS-IS Hello in 5 seconds
 +BRI0/0 is administratively down, line protocol is down
 +  CLNS protocol processing disabled
 +BRI0/0:1 is administratively down, line protocol is down
 +  CLNS protocol processing disabled
 +BRI0/0:2 is administratively down, line protocol is down
 +  CLNS protocol processing disabled
 +Serial0/1 is administratively down, line protocol is down
 +  CLNS protocol processing disabled
 +Loopback0 is up, line protocol is up
 +  Checksums enabled, MTU 1514, Encapsulation LOOPBACK
 +  ERPDUs enabled, min. interval 10 msec.
 +  RDPDUs enabled, min. interval 100 msec., Addr Mask enabled
 +  Congestion Experienced bit set at 4 packets
 +  CLNS fast switching disabled
 +  CLNS SSE switching disabled
 +  DEC compatibility mode OFF for this interface
 +  Next ESH/ISH in 38 seconds
 +  Routing Protocol: IS-IS
 +    Circuit Type: level-1-2
 +    Interface number 0x0, local circuit ID 0x1
 +    Level-1 Metric: 10, Priority: 64, Circuit ID: RT2.01
 +    Number of active level-1 adjacencies: 0
 +    Level-2 Metric: 10, Priority: 64, Circuit ID: RT2.01
 +    Number of active level-2 adjacencies: 0
 +    Next IS-IS LAN Level-1 Hello in 420 milliseconds
 +    Next IS-IS LAN Level-2 Hello in 2 seconds
 +</code>
 +
 +
 +== ????????????????????????????????????????????? ==
 +
 +<code>
 +RT2#debug isis adj-packets
 +01:18:27: ISIS-Adj: Sending L2 LAN IIH on Loopback0, length 1514
 +01:18:28: ISIS-Adj: Sending serial IIH on Serial0/0, length 1499
 +01:18:30: ISIS-Adj: Sending L1 LAN IIH on Loopback0, length 1514
 +01:18:35: ISIS-Adj: Rec serial IIH from *PPP* (Serial0/0), cir type L1L2, cir id
 + 00, length 1499
 +01:18:35: ISIS-Adj: rcvd state UP, old state UP, new state UP
 +01:18:35: ISIS-Adj: Action = ACCEPT
 +</code>
 +
 +
 +== With the ''ping'' command you can check connectivity between two routers. In this output you can see that router RT2 has a connection to router RT1 ==
 +
 +<code>
 +RT2#ping 192.168.1.1
 +
 +Type escape sequence to abort.
 +Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
 +!!!!!
 +Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms
 +RT2#
 +</code>
 +
 +
 +== Another possibility to test the connection between two routers is the ''telnet'' command. If the enable secret password and the vty password are configured on a router you want to connect you have to put in these two passwords during the login process ==
 +
 +<code>
 +RT2#telnet 192.168.1.1
 +Trying 192.168.1.1 ... Open
 +
 +
 +User Access Verification
 +
 +Password:
 +RT1>en
 +Password:
 +RT1#
 +</code>
 +
 
router2differentareas.txt · Last modified: 2009/09/13 14:37 (external edit)
 
Except where otherwise noted, content on this wiki is licensed under the following license:CC Attribution-Noncommercial-Share Alike 3.0 Unported
Recent changes RSS feed Donate Powered by PHP Valid XHTML 1.0 Valid CSS Driven by DokuWiki