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Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Chapter 24 Configuring BXM Virtual Trunks
General Procedures to Set Up Virtual Trunking
The CBR/VBR parameter must also correspond to the virtual trunk type of the virtual trunk. For T3, set
PCR to 96000 and CDTV to 24000 for the connection so that the does not drop cells. Cisco recommends
these values based on testing.
Setting up a Virtual Trunk through an ATM cloud
To set up the BPX private network for virtual trunking, use the following procedure as an example.
Step 1
Obtain the VPC and the associated configuration information from the ATM cloud provider. These
include the VPC VPI, cell format (UNI or NNI).
Step 2
Configure the BXM virtual trunk.
Enter the
uptrk
command to enable the virtual trunk on the BXM trunk interface as follows:
This command:
uptrk
<
slot
>.<
port
>.<
vtrk
>
Enter the
cnftrk
command as follows:
This command:
cnftrk
<
slot
>.<
port
>.<
vtrk
>
If the cloud is already configured, the alarm on the virtual trunk should clear.
Set the
Shift
parameter to “N”, and also make sure the Virtual Trunk configuration matches with the VPC
configuration as described in Step 1.
Step 3
Optionally, use the
cnfrsrc
command to configure the number of channels and the bandwidth available
on the trunk.
Step 4
Enter the
addtrk
command to add the virtual trunk to the network topology as follows:
This command:
addtrk
<
slot
>.<
port
>.<
vtrk
>
The
vtrk
parameter can be 1 to 31 for BXM virtual trunks.
Note
Two ends of a virtual trunk can have different interface types.
For example, a virtual trunk supported by a BXM-T3 interface on one end can be supported by a UXM
OC-3 interface on the other end.
However, both ends of the trunk must have the same:
•
trunk bandwidth
•
connections
•
cell format
•
traffic classes
The
addtrk
command verifies this when you add the trunk.
Содержание BPX 8650
Страница 49: ...P A R T 1 The BPX Switch ...
Страница 50: ......
Страница 159: ...P A R T 2 Installation ...
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Страница 273: ...P A R T 3 Initial Configuration and Network Management ...
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Страница 311: ...P A R T 4 Configuring Connections ...
Страница 312: ......
Страница 487: ...P A R T 5 Troubleshooting and Maintenance ...
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Страница 533: ...P A R T 6 BPX Specifications ...
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Страница 555: ...P A R T 7 Appendices ...
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