Configuring load balancing with management VPLS

With the concept of management VPLS, it is possible to load balance the user VPLS services across the two protecting nodes. This is done by creating two management VPLS instances, where both instances have different active spokes (by changing the STP path-cost). When different user VPLS services are associated with either the two management VPLS services, the traffic is split across the two spokes.

Load balancing can be achieved in both the SAP protection and spoke-SDP protection scenarios. Figure: Example configuration for load balancing across two protected VPLS spoke SDPs shows an example with the following configuration.

Dut-C - spoke-SDP

     mvpls 100
     MVPLS M1
     Dut-A — Spoke SDP 1201:100 (STP blocked); 1401:100
     Dut-B — Spoke SDP 1201:100; 2301:100

Dut-C - Spoke-SDP 1401:100; 2301:100

     uvpls 101
     UVPLS U1
     Dut-A — Spoke SDP 1201:101; 1401:101
     Dut-B — Spoke SDP 1201:101; 2301:101

Dut-C - Spoke-SDP 1401:101; 2301:101

     mvpls 200
     MVPLSM2 
     Dut-A — Spoke SDP 1202:200; 1402:200 (STP blocked)
     Dut-B — Spoke SDP 1202:200; 2302:200

Dut-C - Spoke-SDP 1402:200; 2302:200

     uvpls 201
     UVPLS U2
     Dut-A — Spoke SDP 1202:201; 1402:201
     Dut-B — Spoke SDP 1202:201; 2302:201
     Dut-C — Spoke SDP 1402:201; 2302:201

Figure: Example configuration for load balancing across two protected VPLS spoke SDPs

Use the following syntax to create a load balancing across two management VPLS instances:

config>service# sdp sdp-id mpls create
    far-end ip-address
    lsp lsp-name
    no shutdown
vpls service-id customer customer-id [m-vpls] create
    description description-string
    spoke-sdp sdp-id:vc-id create
    stp
        path-cost 
    stp
    no shutdown

The following examples show configurations for load balancing across two protected VPLS spoke SDPs.

Example: ALA-B configuration

The configuration on ALA-B (7210), the upper left node is shown as follows. It is configured such that it becomes the root bridge for MVPLS 100 and MVPLS 200.

# MVPLS 100 configs

*A:ALA-B# configure service vpls 100 
*A:ALA-B>config>service>vpls# info 
----------------------------------------------
            description "Default tls description for service id 100"
            stp
                priority 0
                no shutdown
            exit
            spoke-sdp 1201:100 create
            exit
            spoke-sdp 2301:100 create
            exit
            no shutdown
----------------------------------------------
*A:ALA-B>config>service>vpls#

# UVPLS 101 configs

*A:ALA-B>config>service# vpls 101 
*A:ALA-B>config>service>vpls# info 
----------------------------------------------

            description "Default tls description for service id 101"
            spoke-sdp 1201:101 create
            exit
            spoke-sdp 2301:101 create
            exit
            no shutdown
----------------------------------------------
*A:ALA-B>config>service>vpls#

# MVPLS 200 configs
 
*A:ALA-B# configure service vpls 200 
*A:ALA-B>config>service>vpls# info 
----------------------------------------------
            description "Default tls description for service id 200"
            stp
                priority 0
                no shutdown
            exit
            spoke-sdp 1202:200 create
            exit
            spoke-sdp 2302:200 create
            exit
            no shutdown
----------------------------------------------
*A:ALA-B>config>service>vpls#


# UVPLS 201 configs
*A:ALA-B>config>service# vpls 201 
*A:ALA-B>config>service>vpls# info 
----------------------------------------------

            description "Default tls description for service id 201"
            spoke-sdp 1202:201 create
            exit
            spoke-sdp 2302:201 create
            exit
            no shutdown
----------------------------------------------
*A:ALA-B>config>service>vpls#

Example: ALA-C configuration

The configuration on ALA-C (7210), the upper right node is shown as follows.

# MVPLS 100 configs

*A:ALA-C# configure service vpls 100 
*A:ALA-C>config>service>vpls# info 
----------------------------------------------

            description "Default tls description for service id 100"
            stp
                priority 4096
                no shutdown
            exit
            spoke-sdp 1401:100 create
            exit
            spoke-sdp 2301:100 create
            exit
            no shutdown
----------------------------------------------
*A:ALA-C>config>service>vpls#


# UVPLS 101 configs

*A:ALA-C>config>service# vpls 101 
*A:ALA-C>config>service>vpls# info 
----------------------------------------------

            description "Default tls description for service id 101"
            spoke-sdp 1401:101 create
            exit
            spoke-sdp 2301:101 create
            exit
            no shutdown
----------------------------------------------
*A:ALA-C>config>service>vpls#

# MVPLS 200 configs
 
*A:ALA-C# configure service vpls 200 
*A:ALA-C>config>service>vpls# info 
----------------------------------------------
            description "Default tls description for service id 200"
            stp
                priority 4096
                no shutdown
            exit
            spoke-sdp 1402:200 create
            exit
            spoke-sdp 2302:200 create
            exit
            no shutdown
----------------------------------------------
*A:ALA-C>config>service>vpls# 


# UVPLS 201 configs

*A:ALA-C>config>service# vpls 201 
*A:ALA-C>config>service>vpls# info 
----------------------------------------------

            description "Default tls description for service id 201"
            spoke-sdp 1402:201 create
            exit
            spoke-sdp 2302:201 create
            exit
            no shutdown
----------------------------------------------
*A:ALA-C>config>service>vpls#