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Example: Routing Matrix with a TX Matrix Router Configuration

 

Routing Matrix with a TX Matrix Router Topology

Figure 1 shows Routing Matrix A, a basic routing matrix consisting of a TX Matrix router and two T640 routers. The TX Matrix router is named SCC and the nodes are named LCC0 and LCC2. The routing matrix with a TX Matrix router is acting as a provider edge (PE) router in a Layer 2 circuit network. SONET interface so-1/1/0 in node LCC0 connects to an IP/MPLS core network, and Asynchronous Transfer Mode 2 (ATM2) intelligent queuing (IQ) interface at-17/1/0 in node LCC2 runs Layer 2 circuit trunk mode to connect to an ATM switch. (For more information about Layer 2 see the Junos VPNs Configuration Guide.)

Figure 1: Routing Matrix with a TX Matrix Router Topology Diagram
Routing Matrix with a TX Matrix Router
Topology Diagram

Some key considerations for this configuration are as follows:

  • Treat the routing matrix like a single router and execute all configuration and operational commands on the TX Matrix router SCC.

  • Create configuration groups for each Routing Engine in the routing matrix by using groups re0, re1, lcc0-re0, lcc2-re0, lcc0-re1, and lcc2-re1. In the groups, configure hostnames, default routes, and management interfaces.

  • To configure interfaces, use the routing matrix FPC numbering convention of slots 0 through 31.

  • To enable ATM2 IQ trunk mode and other chassis-based commands, include the lcc lcc-number statement at the [edit chassis] hierarchy level and use the hardware FPC slot numbers 0 through 7 of node LCC2.

  • Configure most other processes as usual, such as routing, class of service (CoS), and firewalls.

TX Matrix Router—SCC

Verifying Your Work on the Routing Matrix with a TX Matrix Router

To verify proper operation of the routing matrix with a TX Matrix router, use the following commands on the TX Matrix router:

  • show chassis alarms <lcc lcc-number | scc>

  • show chassis craft-interface <lcc lcc-number | scc>

  • show chassis ethernet-switch <lcc lcc-number | scc>

  • show chassis hardware <lcc lcc-number | scc>

  • show chassis fpc <lcc lcc-number>

  • show chassis lccs

  • show chassis location <fpc | interface | lcc lcc-number | scc>

  • show chassis routing-engine <lcc lcc-number | scc>

  • show chassis sibs <lcc lcc-number | scc>

  • show interfaces terse

  • show route summary

  • show system uptime <all-lcc | lcc lcc-number | scc>

  • show version <all-lcc | lcc lcc-number | scc>

In general, when you issue standard operational commands on a TX Matrix router, you receive output from the primary Routing Engines of all components in the routing matrix. To limit the output of information for a specific T640 router within the routing matrix, include the lcc lcc-number option. To display information for the TX Matrix router only, include the scc option. To display information for all T640 routers within the routing matrix (selected commands only), include the all-lcc option. Any exceptions to this general rule are mentioned next to the appropriate commands.

The following sections show the output of select operational commands used with the configuration example:

Displaying the Software Version on A Routing Matrix with a TX Matrix Router

The show version command provides an excellent example of how you can select output for various components of the routing matrix with a TX Matrix router. If the TX Matrix router (SCC) or a T640 router (LCC) is not specified in the command, then the command displays output for all components.

user@router> show version ?

 

To display the software version for all routing matrix components, issue the show version command on the TX Matrix router:

user@router> show version

 

To display the software version for the TX Matrix router only, include the scc option:

user@router> show version scc

To display the software version for a specific T640 router, include the lcc option:

user@router> show version lcc 0

To display the output for all T640 routers, include the all-lcc option:

user@router> show version all-lcc

Displaying Interfaces

Although individual FPCs are installed in each of the T640 routers, the routing matrix is designed to collect interface information centrally at the TX Matrix router. To display available interfaces in the routing matrix, issue a show interfaces command on the TX Matrix router:

user@router> show interfaces terse

Displaying Routes

When you need to verify route information for a routing matrix, you must issue operational commands on the TX Matrix router. To display available routes for the routing matrix, issue a show route command:

user@router> show route summary

Displaying Alarms and System Uptime

To display alarms for all routing matrix components, issue the show chassis alarms command:

user@router> show chassis alarms

To display the craft interface display for all routing matrix components, issue the show chassis craft-interface command:

user@router> show chassis craft-interface

To display the amount of time the routing matrix components have been in operation, issue the show system uptime command on the TX Matrix router:

user@router> show system uptime

Displaying Chassis Hardware and Status for a Routing Matrix with a TX Matrix Router

To display the hardware inventory for a routing matrix with a TX Matrix router, you can select output for the TX Matrix router only, a specific T640 router, or all components. If a specific component (lcc or scc) is not specified as an option in the command, the default output displays information for the entire routing matrix.

user@router> show chassis hardware ?

To display all hardware components in a routing matrix, issue the show chassis hardware command on the TX Matrix router:

user@router> show chassis hardware

 

You can also display individual hardware components in the TX Matrix router, a specific T640 router, or the entire routing matrix. To display all the SIBs in the entire routing matrix, issue the show chassis sibs command on the TX Matrix router.

user@router> show chassis sibs

To display information about all master Routing Engines in the routing matrix, issue the show chassis routing-engine command on the TX Matrix router:

user@router> show chassis routing-engine

To display information about FPCs in a routing matrix, issue the show chassis fpc command. Because there are no FPCs in a TX Matrix router, there is no scc option available for this command.

user@router> show chassis fpc

You can also check to see if the TX Matrix router and T640 routers are communicating correctly within the routing matrix. To verify that the T640 routers have proper connectivity to the routing matrix, issue the show chassis lccs command. In this example, there are two T640 routers in the routing matrix.

user@router> show chassis lccs