Procedure for Configuring VMANs

This section describes the procedure for configuring VMANs. Before configuring VMANs, review Guidelines for Configuring VMANs. To configure a VMAN, complete the following procedure at each switch that needs to support the VMAN:

If you are configuring a BlackDiamond 8800 series switch, a SummitStack, or a Summit family switch, enable jumbo frames on the switch.

Note
Because the BlackDiamond 8800 series switches, SummitStack, and the Summit family of switches enable jumbo frames switch-wide, you must enable jumbo frames before configuring VMANs on these systems.
Create a VMAN using the command:
create vman vman_name | vman_list vr vr_name
Assign a tag value to the VMAN using the command:.
configure vman vman_name | vman_list tag tag_id
To configure PNP ports on a PEB or PB, use the following command with the tagged option:
configure vman vman_name | vman_idadd ports [ all | port_list ] {untagged { port-cvid port_cvid} | tagged}
To configure CNP ports on a PEB, use the following command with the untagged option:
configure vman vman_name add ports [ all | port_list ] {untagged { port-cvid port_cvid} | tagged}
Note
You must configure CNP ports as untagged, so that the S-tag is stripped from the frame on egress. If the port-cvid is configured, any untagged packet received on the port will be double tagged with the configured port CVID and the SVID associated with the VMAN. Packets received with a single CVID on the same port will still have the SVID added as usual. As double tagged packets are received from tagged VMAN ports and forwarded to untagged VMAN ports,the SVID associated with the VMAN is stripped. Additionally, the CVID associated with the configured port CVID is also stripped in the same operation.
To configure CEP ports on a PEB, do the following:
1. Use the following command to establish a physical port as a CEP and configure CVID mapping and translation:
  configure vman vman_name | vman_idadd ports port_list cep cvid cvid_range {translate cvid | cvid_range}}
2. Use the following commands to add or delete CVIDs for a CEP and manage CVID mapping and translation:
  configure vman vman_name | vman_idports port_list add cvid {cvid | cvid_range} {translate cvid | cvid_range }
  
  configure vman vman_name ports port_list delete cvid {cvid | cvid_range }
3. Use the following commands to manage CVID egress filtering for a CEP:
  enable vman cep egress filtering ports {port_list | all}
  
  disable vman cep egress filtering ports {port_list | all}
Configure additional VMAN options as described in Configuring VMAN Options.
To configure a VLAN to use a VMAN, configure the VLAN on the switch port at the other end of the line leading to the VMAN access port.

Published March 2020prev | next

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