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 will be split across the two spokes.
Load balancing can be achieved in both the SAP protection and spoke-SDP protection scenarios. The following figure 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; 2301:100Dut-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; 2301:101Dut-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; 2302:200Dut-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
This following output shows example configurations for load balancing across two protected VPLS spoke-SDPs:
The following is a sample configuration output on ALA-A.
# MVPLS 100 configs
*A:ALA-A# configure service vpls 100
*A:ALA-A>config>service>vpls# info
----------------------------------------------
description "Default tls description for service id 100"
stp
no shutdown
exit
sap lag-3:100 create
description "Default sap description for service id 100"
managed-vlan-list
range 101-110
exit
exit
spoke-sdp 1201:100 create
stp
path-cost 100
exit
exit
spoke-sdp 1401:100 create
exit
no shutdown
----------------------------------------------
*A:ALA-A>config>service>vpls#
# UVPLS 101 configs
*A:ALA-A>config>service# vpls 101
*A:ALA-A>config>service>vpls# info
----------------------------------------------
description "Default tls description for service id 101"
sap lag-3:101 create
description "Default sap description for service id 101"
exit
spoke-sdp 1201:101 create
exit
spoke-sdp 1401:101 create
exit
no shutdown
----------------------------------------------
*A:ALA-A>config>service>vpls#
# MVPLS 200 configs
*A:ALA-A# configure service vpls 200
*A:ALA-A>config>service>vpls# info
----------------------------------------------
description "Default tls description for service id 200"
stp
no shutdown
exit
sap lag-3:200 create
description "Default sap description for service id 200"
managed-vlan-list
range 201-210
exit
exit
spoke-sdp 1202:200 create
exit
spoke-sdp 1402:200 create
stp
path-cost 100
exit
exit
no shutdown
----------------------------------------------
*A:ALA-A>config>service>vpls#
# UVPLS 201 configs
*A:ALA-A>config>service# vpls 201
*A:ALA-A>config>service>vpls# info
----------------------------------------------
description "Default tls description for service id 201"
sap lag-3:201 create
description "Default sap description for service id 201"
exit
spoke-sdp 1202:201 create
exit
spoke-sdp 1402:201 create
exit
no shutdown
----------------------------------------------
*A:ALA-A>config>service>vpls# exit all
The following is a sample configuration output on ALA-B (7210), the top left node. 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#
The following is a sample configuration output on ALA-C (7210), the top right node.
# 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#