Configure an SPBM Layer 2 Switched UNI on a Port

Shortest Path Bridging MAC (SPBM) supports Layer 2 Virtual Service Network (VSN) functionality where Switched UNIs are bridged over the SPBM core infrastructure.

Note

Note

EAP and FA can coexist on the same port. EAP and FA can be enabled in any order; however, EAP must have Flex UNI enabled in order to function on an FA-enabled port. If EAP is currently enabled, FA can only be enabled if the port is a Flex UNI-enabled port.

Before you begin

  • You must configure the required SPBM and IS-IS infrastructure.

About this task

To configure a Switched UNI on a port, you must create a Switched UNI I-SID, and map the port to the Switched UNI I-SID.

Note

Note

When you configure Switched UNI, Spanning tree is disabled on all the Switched UNI ports.

Procedure

  1. Enter GigabitEthernet Interface Configuration mode:

    enable

    configure terminal

    interface GigabitEthernet {slot/port[/sub-port][-slot/port[/sub-port]][,...]}

    Note

    Note

    If the platform supports channelization and the port is channelized, you must also specify the sub-port in the format slot/port/sub-port.

  2. Enable Switched UNI on a port:

    flex-uni enable

  3. Configure a Switched UNI Service Instance Identifier (I-SID):

    i-sid <1–16777215> [elan]

    This command automatically takes you to the ELAN I-SID Configuration mode.

  4. Add ports to a Switched UNI I-SID:

    c-vid <1-4094> port {slot/port[/sub-port][-slot/port[/sub-port]][,...]}

  5. Add untagged traffic to a Switched UNI I-SID:

    untagged—traffic port {slot/port[/sub-port][-slot/port[/sub-port]][,...]} [bpdu enable]

  6. Display the Switched UNI information:

    show interface gigabitethernet i-sid {slot/port[/sub-port][-slot/port[/sub-port]][,...]}

Examples

Switch:1>enable
Switch:1#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Switch:1(config)#interface gigabitethernet 1/1,1/2
Switch:1(config-if)#flex-uni enable
Switch:1(config-if)#i-sid 100
Switch:1(elan:100)#c-vid 10 port 1/1,1/2
Switch:1(elan:100)#untagged—traffic port 1/1,1/2 bpdu enable

Switch:1#show interface gigabitEthernet i-sid
=======================================================================================
                           PORT Isid Info
=======================================================================================
                ISID                   ISID                        ISID              MAC
PORTNUM IFINDEX ID       VLANID C-VID  TYPE     ORIGIN             NAME        BPDU  SUNI
----------------------------------------------------------------------------------------
1/1     192     27       N/A    4000   ELAN     C  ---  -  ---  -  ISID-27           FALSE
1/1     192     270      N/A    4001   ELAN     C  ---  -  ---  -  ISID-270          FALSE
1/1     192     309      N/A    309    ELAN     C  ---  -  ---  -  ISID-309          FALSE
1/1     192     401      N/A    401    ELAN     C  ---  -  ---  -  ISID-401          FALSE
1/1     192     1001     N/A    1001   ELAN     C  ---  -  ---  -  ISID-1001         FALSE
1/1     192     1111     N/A    1111   ELAN     C  ---  -  ---  -  ISID-1111         FALSE
1/1     192     1121     N/A    1121   ELAN     C  ---  -  ---  -  ISID-1121         FALSE
1/1     192     1201     N/A    1201   ELAN     C  ---  -  ---  -  ISID-1201         FALSE
1/1     192     2001     N/A    2001   ELAN     C  ---  -  ---  -  ISID-2001         FALSE
1/2     193     38       N/A    4000   ELAN     C  ---  -  ---  -  ISID-38           FALSE
1/2     193     310      N/A    310    ELAN     C  ---  -  ---  -  ISID-310          FALSE
1/2     193     380      N/A    4001   ELAN     C  ---  -  ---  -  ISID-380          FALSE
1/2     193     402      N/A    402    ELAN     C  ---  -  ---  -  ISID-402          FALSE

13 out of 152 Total Num of i-sid endpoints displayed

ORIGIN Legend:
C: manually configured; D: discovered by FA or EPT
M: FA management; E: discovered by EAP; A: auto-sense
l: discover by local switch  r: discover by remote VIST switch

Variable definitions

The following table defines parameters for the i-sid command to configure a Switched UNI.

Variable

Value

i-sid <1–16777215>

Specifies the service interface identifier (I-SID).

c-vid <1-4094>

Specifies the customer VLAN ID.

{slot/port[/sub-port] [-slot/port[/sub-port]] [,...]}

Specifies the ports associated with the Switched UNI I-SID.

bdpu enable

Enables bridge packet data units (BPDU) for an untagged end point.
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