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Configuring ATM Cell-Relay Pseudowire

In ATM cell-relay mode, one or more ATM cells are bundled together to form a packet that is sent across the packet-switched network (PSN) using MPLS. In this mode, each ATM cell and its header are transported over the MPLS cloud. The ATM header consisting of the VPI and VCI values is transported across the MPLS cloud or the backhaul network.

By default, all incoming cells are mapped from a single virtual circuit to an ATM pseudowire. For ATM logical interfaces configured with atm-ccc-cell-relay encapsulation, you can configure ATM cell-relay pseudowire in VP-promiscuous mode, port-promiscuous mode, and VCC mode.

This topic includes the following tasks:

Configuring ATM Cell-Relay Pseudowire in Port-Promiscuous Mode

To configure ATM cell-relay pseudowire in port-promiscuous mode:

  1. In configuration mode, go to the [edit interfaces] hierarchy level and set the interface as at-0/2/2.
    [edit]user@host#edit interfaces at-0/2/2
  2. To map incoming traffic, include the promiscuous mode statement at the [edit interfaces interface-name atm-options] hierarchy level.
    [edit interfaces at-0/2/2]user@host#set atm-options promiscuous-mode
  3. To configure ATM encapsulation on unit 0, include the encapsulation statement at the [edit interfaces interface-name] hierarchy level.
    [edit interfaces at-0/2/2]user@host#set unit 0 encapsulation atm-ccc-cell-relay
  4. Include the allow-any-vci statement at the [edit interfaces interface-name] hierarchy level.
    [edit interfaces at-0/2/2]user@host#set unit 0 allow-any-vci
  5. To verify the configuration, you can issue the following operational mode command in configuration mode:
    [edit]user@host#show at-0/2/2
    atm-options{
    promiscuous-mode;
    }
    unit 0{
    encapsulation atm-ccc-cell-relay;
    allow-any-vci;
    }

Configuring ATM Cell-Relay Pseudowire in VP-Promiscuous Mode

To configure ATM cell-relay pseudowire in VP-promiscuous mode:

  1. In configuration mode, go to the [edit interfaces] hierarchy level and set the interface as at-0/2/2.
    [edit]user@host#edit interfaces at-0/2/2
  2. To map incoming traffic to a single LSP and to specify the VPI value as 8, include the promiscuous mode statement and vpi vpi-identifier statement at the [edit interfaces interface-name atm-options] hierarchy level.
    [edit interfaces at-0/2/2]user@host#set atm-options promiscuous-mode vpi 8
  3. To configure ATM encapsulation on unit 0, include the encapsulation statement at the [edit interfaces interface-name] hierarchy level.
    [edit interfaces at-0/2/2]user@host#set unit 0 encapsulation atm-ccc-cell-relay
  4. To specify 8 as the VPI value on unit 0, include the vpi vpi-identifier statement at the [edit interfaces interface-name] hierarchy level.
    [edit interfaces at-0/2/2]user@host#set unit 0 vpi 8
  5. To verify the configuration, you can issue the following operational mode command in configuration mode:
    [edit]user@host#show at-0/2/2
    atm-options{
    vpi 8;
    promiscuous-mode;
    }
    unit 0{
    encapsulation atm-ccc-cell-relay;
    vpi 8;
    }

Configuring ATM Cell-Relay Pseudowire in VCC Mode

To configure ATM cell-relay pseudowire in VCC mode:

  1. In configuration mode, go to the [edit interfaces] hierarchy level and set the interface as at-0/2/2.
    [edit]user@host#edit interfaces at-0/2/2
  2. To map incoming traffic to a single LSP and to specify the VPI value as 9, include the promiscuous mode statement and vpi vpi-identifier statement at the [edit interfaces interface-name atm-options] hierarchy level.
    [edit interfaces at-0/2/2]user@host#set atm-options promiscuous-mode vpi 9
  3. To configure ATM encapsulation on unit 0, include the encapsulation statement at the [edit interfaces interface-name] hierarchy level.
    [edit interfaces at-0/2/2]user@host#set unit 0 encapsulation atm-ccc-cell-relay
  4. To specify the VCI value as 9.99 on unit 0, include the vci vci-identifier statement at the [edit interfaces interface-name] hierarchy level.
    [edit interfaces at-0/2/2]user@host#set unit 0 vci 9.99
  5. To verify the configuration, you can issue the following operational mode command in configuration mode:
    [edit]user@host#show at-0/2/2
    atm-options{
    vpi 9;
    promiscuous-mode;
    }
    unit 0{
    encapsulation atm-ccc-cell-relay;
    vci 9.99;
    }

Published: 2013-01-17