Displaying And Maintaining Vts And Va Interfaces - 3Com MSR 50 Series Configuration Manual

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Displaying and
Maintaining VTs and VA
Interfaces
Table 30 Create a VT
Operation
Create a VT and enter VT view interface virtual-template
Set the maximum number of
links that can send multicast
or broadcast packets in a VT
Before removing a VT, make sure that all the virtual interfaces derived from the VT
are removed and the VT is not being used.
Configure VT operation parameters
Compared to normal physical interfaces, a VT supports only PPP on the link layer
and IP on the network layer. You can configure the following operation
parameters for a VT:
Operation parameters for PPP
■
IP address of a virtual interface
■
IP address (or IP address pool) to be assigned to the PPP peer
■
For the detailed configuration information, refer to
on page 363.
Associate a VT with relevant physical interfaces
When necessary, the system will automatically create VA interfaces, which will
adopt the parameters defined in a specific VT. You need not create and configure
VA interfaces manually. VA interfaces will be removed due to underlying layer
disconnection or user intervention.
In VPN implementations, you need to associate layer-2 tunneling protocol (L2TP)
with a VT. Refer to the
implementations, you need to associate MP users with a VT. Refer to
Configuration" on page 363
After the above configuration, you can use the display command in any view to
view the configuration information about the VTs and VA interfaces, so as to verify
the configuration.
Table 31 Display VTs and VA interfaces
Operation
Display the status of the
specified VT
Display the status of the VA
interface
Command
number
broadcast-limit link number Optional
"L2TP Configuration" on page 1601
for detailed information.
Command
display interface virtual-template number
display virtual-access [ dialer dialer-number | vt
vt-number | user user-name | peer peer-address |
va-number ]*
VT and VA Interface
Description
Required
If the specified VT does not
exist, this command first
creates the VT and then
enters the VT view.
By default, up to 30 links in a
VT can send multicast or
broadcast packets.
"PPP and MP Configuration"
for details. In MP
"PPP and MP
535