3com 8807 사용자 가이드
644
C
HAPTER
52: VPLS C
ONFIGURATION
Configuring VPLS load
sharing
When multiple moduloes exist within a single chassis, the load can be shared
between them. For example, Configure VSls through 7 with label ranges 0
through 7 respectively. Then associate the VPLS module in slot 0 with label ranges
0 through 3 and the VPLS module in slot 1 with label ranges 4 through 7 using the
ACL command listed in Table 584.
between them. For example, Configure VSls through 7 with label ranges 0
through 7 respectively. Then associate the VPLS module in slot 0 with label ranges
0 through 3 and the VPLS module in slot 1 with label ranges 4 through 7 using the
ACL command listed in Table 584.
By default, a created VSI falls within the label range that has the least VSIs and the
flow of the VSI is redirected by the label range to the VPLS module for processing
so that the load is shared. Meanwhile, you can also change the direction of the VSI
flow manually by changing the label range corresponding to the VSI so that the
load on VPLS modules is shared more evenly.
flow of the VSI is redirected by the label range to the VPLS module for processing
so that the load is shared. Meanwhile, you can also change the direction of the VSI
flow manually by changing the label range corresponding to the VSI so that the
load on VPLS modules is shared more evenly.
The VPLS-LOAD-SHARE command is enabled by default. When enabled, this
command allows one VPLS module to take over for another VPLS module in the
event of failure. If disabled, failure of the VPLS module in slot 0 would result in
loss of traffic for VSIs 0 thru 3 and failure of the VPLS module in slot 1 would result
in loss of traffic for VSIs 4 thru 7.
command allows one VPLS module to take over for another VPLS module in the
event of failure. If disabled, failure of the VPLS module in slot 0 would result in
loss of traffic for VSIs 0 thru 3 and failure of the VPLS module in slot 1 would result
in loss of traffic for VSIs 4 thru 7.
Configuring VPLS
Characteristics
Configuring VPN rate limitation
Use the bandwidth command to configure the VPN rate limitation in the range of
64 kbps to 4,194,303 kbps with the increment of 64. After the configuration, the
system automatically takes the biggest number that can be exactly divided by 64
and is no more than the setting number as the rate limitation. For example, if you
specify the VPN rate limitation to be 200, then the actual is 192, three times of 64.
The actually supported rate limitation ranges from 64 kbps to 2,097,152 kbps
(included), and if the value you set is above 2,097,152 kbps, no rate limitation is
performed. In the instance, the part of traffic beyond this bandwidth restriction is
discarded by the system.
64 kbps to 4,194,303 kbps with the increment of 64. After the configuration, the
system automatically takes the biggest number that can be exactly divided by 64
and is no more than the setting number as the rate limitation. For example, if you
specify the VPN rate limitation to be 200, then the actual is 192, three times of 64.
The actually supported rate limitation ranges from 64 kbps to 2,097,152 kbps
(included), and if the value you set is above 2,097,152 kbps, no rate limitation is
performed. In the instance, the part of traffic beyond this bandwidth restriction is
discarded by the system.
Perform the following configuration in VSI view.
Table 584 Enable VPLS load sharing
Operation
Command
Description
Enter system view
system-view
-
Enable VPLS load sharing
vpls-load-share enable
Optional
By default, VPLS load sharing
is enabled.
is enabled.
Configure the label range ID
corresponding to the VSI
corresponding to the VSI
label-range label-range-id
Optional
By default, the label range ID
corresponding to the VSI is
the smallest label range ID
that currently holds the least
VSIs.
corresponding to the VSI is
the smallest label range ID
that currently holds the least
VSIs.
Add a rule for the Link ACL.
rule [ rule-id ] permit mpls
l2label-range [ range-id ]
ingress any egress any
l2label-range [ range-id ]
ingress any egress any
Required
By default, the label
corresponding to the rule
ranges from 128K to 256K-1.
corresponding to the rule
ranges from 128K to 256K-1.
Table 585 Configure VPN rate limitation
Operation
Command
Configure VPN rate limitation
bandwidth bw-limit