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Displaying the Status of Control Board Ethernet Switch Ports in a Routing Matrix with a TX Matrix Plus Router

 

The following sections describe the Ethernet switches on the Control Boards in a routing matrix with a TX Matrix Plus router and how you can use the show chassis ethernet-switch operational command to display information about the ports on Control Board Ethernet switches:

Ethernet Switches on Control Boards in the Routing Matrix

In a routing matrix with a TX Matrix Plus router, the SFC and all connected LCCs contain redundant host subsystems. For each host subsystem in a T1600 or T4000 router in a routing matrix, the Control Board (LCC-CB) contains a Gigabit Ethernet switch. For each host subsystem in a TX Matrix Plus router, the Control Board (TXP-CB) contains a 10-Gigabit Ethernet switch and a Gigabit Ethernet switch, which are connected.

These switches support the following connectivity between Routing Engines in the routing matrix:

Connectivity Between SFC and LCC Routing Engines

In a routing matrix with a TX Matrix Plus router, the SFC master Routing Engine and every LCC master Routing Engine are connected, enabling the multi-chassis system to operate as a single routing system. The SFC backup Routing Engine and every LCC backup Routing Engine are likewise connected.

This connectivity entails the 10-Gigabit and Gigabit Ethernet switches on the TXP-CB and the Gigabit Ethernet switch on the LCC-CB:

  1. The 10-Gigabit Ethernet port on the SFC Routing Engine (automatically configured at the ixgbe0 internal Ethernet interface) connects to the 10-Gigabit Ethernet switch on the local Control Board.

  2. On the SFC local Control Board, he 10-Gigabit Ethernet switch connects to the Gigabit Ethernet switch.

  3. The Gigabit Ethernet switch on the SFC Control Board connects to the Gigabit Ethernet switch of every LCC Control Board.

  4. On every LCC Routing Engine, the Gigabit Ethernet port (automatically configured at the bcm0 internal Ethernet inteface) connects to the Gigabit Ethernet switch on the local Control Board.

Connectivity Between SFC Master and Backup Routing Engines

In a routing matrix with a TX Matrix Plus router, the independent control planes of an SFC are connected by two physical links between the two 10-Gigabit Ethernet ports on their respective Routing Engines.

This connectivity entails the 10-Gigabit Ethernet switches on the local and remote TXP-CBs:

  • The primary link to the remote Routing Engine is at the ixgbe0 interface on the SFC Routing Engine. The ixgbe0 interface—in addition to connecting the SFC Routing Engine to the Routing Engines of the connected LCCs—also connects the SFC Routing Engine to the 10-Gigabit Ethernet port accessed by the ixgbe1 interface on the remote Routing Engine.

  • The alternate link to the remote Routing Engine is the 10-Gigabit Ethernet port at the ixgbe1 interface on the Routing Engine. This second port connects the Routing Engine to the 10-Gigabit Ethernet switch on the remote Control Board, which in turn connects to the 10-Gigabit Ethernet port at the ixgbe0 interface on the remote Routing Engine.

If one of the two links between the host subsystems fails, both Routing Engines can use the other link for IP communication.

Connectivity Between LCC Master and Backup Routing Engines

In a routing matrix with a TX Matrix Plus router, the independent control planes of an LCC are connected by two physical links between the two Gigabit Ethernet ports on their respective Routing Engines.

This connectivity entails the Gigabit Ethernet switches on the local and remote LCC-CBs:

  • The primary link to the remote Routing Engine is at the bcm0 interface on the LCC Routing Engine. The bcm0 interface—in addition to connecting the LCC Routing Engine to the SFC Routine Engine—also connects the LCC Routing Engine to the Gigabit Ethernet port accessed by the em1 interface on the remote Routing Engine.

  • The alternate link to the remote Routing Engine is at the Gigabit Ethernet port at the em1 interface on the local Routing Engine. This second port connects the local Routing Engine to the Gigabit Ethernet switch on the remote Control Board, which in turn connects to the Gigabit Ethernet port at the bcm0 interface on the remote Routing Engine.

If one of the two links between the host subsystems fails, both Routing Engines can use the other link for IP communication.

Status of Ports on Control Board Ethernet Switches

To display port status information for the ports on the Control Board Ethernet switches in the routing matrix, use the following form of the show chassis ethernet-switch operational command:

You can control the scope of the command output as follows:

  • To display the status of the switch ports on the Control Boards in every router in the routing matrix, issue the show chassis ethernet-switch command without any command options.

  • To limit the output to the status of the ports on the 10-Gigabit Ethernet switch and the Gigabit Ethernet switch on the two Control Boards in the SFC, issue the show chassis ethernet-switch command with the sfc sfc-number option, where sfc-number is 0.

  • To limit the output to the status of the ports on the Gigabit Ethernet switch in the two Control Boards in a specific LCC, issue the show chassis ethernet-switch operational command with the lcc lcc-number option, where lcc-number is a value from 0 through 3.

Error Statistics for Ports on Control Board Ethernet Switches

To display the numbers and types of errors accumulated on the connected ports of Control Board Ethernet switches in the routing matrix, use the following form of the show chassis ethernet-switch operational command:

You can control the scope of the command output as follows:

  • To display error information for ports on Control Board Ethernet switches in every router in the routing matrix, issue the show chassis ethernet-switch errors command (applying only the errors command option).

  • To limit the command output, you add any combination of the following command options:

    • Chassis—To filter the output on a specific chassis, you can include either the sfc sfc-number option (where sfc-number is 0) or the lcc lcc-number option.

    • SFC Control Board Ethernet Switch Type—If the command output includes information for Control Board Ethernet switches in an SFC (that is, if you applied either the errors option alone or the errors sfc sfc-number option), you can filter the SFC portion of the output on a specific switch type. To limit SFC Control Board Ethernet switch port error information, include the switch switch-type-number option. The switch-type-number value can be 0 (the 10-Gigabit Ethernet switch type) or 1 (the Gigabit Ethernet switch type). The switch-type-number 2 is reserved for future use.

    • Control Board Ethernet Switch Port Number—To filter the output on a specific switch port number, include the switch-port-number option, where switch-port-number is a value from 0 through 27.

Traffic Statistics for Ports on Control Board Ethernet Switches

To display the traffic statistics accumulated on the connected ports of Control Board Ethernet switches in the routing matrix, use the following form of the show chassis ethernet-switch operational command:

You can control the scope of the command output as follows:

  • To display traffic statistics for Ethernet ports on Control Board switches in every router in the routing matrix, issue the show chassis ethernet-switch statistics command (applying only the statistics command option).

  • To limit the command output, you can add any combination of the following command options:

    • Chassis—To filter the output on a specific chassis, you can include either the sfc sfc-number option (where sfc-number is 0) or the lcc lcc-number option .

    • SFC Control Board Ethernet Switch Type—If the command output includes information for Control Board Ethernet switches in an SFC (that is, if you applied either the statistics option alone or the statistics sfc sfc-number option), you can filter the SFC portion of the output on a specific switch type. To limit SFC Control Board Ethernet switch port error information, include the switch switch-type-number option. The switch-type-number value can be 0 (the 10-Gigabit Ethernet switch type) or 1 (the Gigabit Ethernet switch type). The switch-type-number 2 is reserved for future use.

    • Control Board Ethernet Switch Port Number—To filter the output on a specific switch port number, include the switch-port-number option, where switch-port-number is a value from 0 through 27.