300CHAPTER 19: ATM CONFIGURATION COMMANDS

vpi/vci: VPI/VCI pair. VPI is short for virtual path identifier; its value ranges from 0 to 255. VCI is short for virtual channel identifier; its value range varies by interface type. Normally, VCI values from 0 to 31 are reserved for special purpose, you are not recommended to use them. For details regarding the value range, refer to Table 28.

min: Minimum precedence of IP packets carried by the PVC, in the range 0 to 7.

max: Maximum precedence of IP packets carried by the PVC, in the range 0 to 7.

default: Uses the specified PVC as the default PVC.

Description Use the ip-precedencecommand to let different PVCs in PVC-group carry IP packets of different precedence levels.

Use the undo ip-precedencecommand to delete the precedence configuration of IP packets carried over PVC.

If the ip-precedencecommand is not configured, all IP packets, regardless of their precedence levels, are transmitted over the primary PVC (the one used when the PVC-group is created) in the PVC-group.

If this command is configured and the default keyword is used, which means the current PVC is set as the default PVC, then all the IP packets without specified precedence levels will be transmitted over this PVC.

If this command is used without using the default keyword, which means no PVC is taken as the default PVC, all IP packets without specified precedence levels are transmitted over the primary PVC.

This command is for configuration of the PVCs in the PVC-Group only. The specified minimum preference min should be not greater than the specified maximum preference max.

Note that this command does not change the precedence levels of IP packets.

Related command: pvc-group,pvc.

Example # Configure a PVC named “aa”, whose VPI/VCI is 1/32, to carry IP packets with precedence level 0 to 3.

<Sysname> system-view [Sysname] interface atm 1/0 [Sysname-Atm1/0] pvc-group aa 1/32

[Sysname-atm-pvc-group-Atm1/0-1/32-aa] ip-precedence aa 1/32 0 3

map bridge

Syntax map bridge virtual-ethernet interface-number

undo map bridge

View PVC view/ATM Class view

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3Com MSR 30, MSR 50 manual Map bridge, Related command pvc-group,pvc, View PVC view/ATM Class view