Configuring A Tunneling Policy Of A Vpn Instance - 3Com MSR 50 Series Configuration Manual

Configuring a Tunneling
Policy of a VPN Instance
n
n
You can define the maximum number of routes for a VPN instance to support,
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preventing too many routes from being redistributed into the PE. The
maximum number of routes supported by a PE may vary by device.
Before associating a routing policy with a VPN instance, you must create the
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routing policy at first. Otherwise, the default routing policy is used.
Configuring a tunneling policy
Follow these steps to configure a tunneling policy:
To do...
Enter system view
Create a tunneling policy and
enter tunneling policy view
Specify the priorities of
tunnels and the number of
tunnels for load balancing
For example, with the tunnel select-seq lsp gre load-balance-number 1
command configured, VPN uses GRE tunnels if no LSP exists. Once an LSP is
created, however, the GRE tunnel will be torn down and the LSP tunnel is used
instead.
If you specify more than one tunnel type and the number of tunnels of a type is
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less than the specified number of tunnels for load balance, tunnels of different
types may be used.
When you configure tunnel priorities using the tunnel select-seq command, a
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tunnel type closer to the select-seq keyword has a higher priority. For
example, with the tunnel select-seq lsp gre load-balance-number 1
command configured, VPN uses a GRE tunnel if no LSP exists. Once an LSP is
created, the GRE tunnel will be torn down and the LSP tunnel is used instead.
Associating a tunneling policy with the VPN instance
Follow these steps to associate a tunneling policy with the VPN instance:
To do...
Enter system view
Enter VPN instance view
Associate a tunneling policy
with the VPN instance
Create the tunneling policy before associating it with the VPN instance. Otherwise,
the default policy will be used.
Use the command...
system-view
tunnel-policy
tunnel-policy-name
tunnel select-seq { cr-lsp |
gre | lsp }*
load-balance-number
number
Use the command...
system-view
ip vpn-instance
vpn-instance-name
tnl-policy
tunnel-policy-name
Configuring VPN Instances
Remarks
-
Required
Required
By default, the LSP tunnel is
used and the number of
tunnels for load balancing is
1.
Remarks
-
Required
Required
By default, the LSP tunnel is used
and the number of tunnels for load
balancing is 1.
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