R2511-HP MSR Router Series Layer 2 - WAN Command Reference(V5)

103
Default command level
2: System level
Usage guidelines
This command is available only on the BSV card's network-side BRI interfaces.
After you specify a BSV interface operating on the network side to be in the permanent active state at the
physical layer using the permanent-active command, no deactivating request is sent to the physical layer.
The interface remains in the active state if it is up and the physical link operates smoothly.
The permanent-active command functions differently comparing with the isdn q921-permanent
command. The former maintains the active state of BRI interfaces at the physical layer and is only
applicable to BRI interfaces operating on the network side. It cannot activate the BRI interfaces that are
in the inactive state at the physical layer. The latter, however, enables ISDN BRI interfaces operating on
user side to set up and maintain Q.921 links automatically. If no Q.921 link is established, the isdn
q921-permanent command triggers the ISDN BRI interface to establish Q.921 links.
The following matrix shows the command and router compatibility:
Command MSR20-1
X
MSR20 MSR30 MSR50 MSR1000
permanent-active Yes Yes Yes Yes Yes
Examples
# Specify interface BRI 2/0 to be in the permanent active state at the physical layer (assuming that the
interface is a BSV interface and operating on network side).
<Sysname> system-view
[Sysname] interface bri 2/0
[Sysname-Bri2/0] isdn protocol-mode network
[Sysname-Bri2/0] permanent-active
power-source
Use power-source to enable remote powering on an ISDN BRI interface.
Use undo power-source to disable remote powering.
Syntax
power-source
undo power-source
Default
Remote powering is disabled.
Views
ISDN BRI interface view
Default command level
2: System level
Usage guidelines
This command is available only on the BSV card's network-side BRI interfaces.
The following matrix shows the command and router compatibility: