3com MSR 20-20 참조 매뉴얼
1550
C
HAPTER
95: MPLS B
ASICS
C
ONFIGURATION
C
OMMANDS
If the interface is bound to a VPN instance, you must use the mpls ldp
vpn-instance command to enable LDP for the VPN instance before enabling LDP
on the interface to add the interface into the VPN instance.
vpn-instance command to enable LDP for the VPN instance before enabling LDP
on the interface to add the interface into the VPN instance.
n
This command supports these interface types: serial interface, async interface,
Layer 3 Ethernet interface (Ethernet interface, GE interface, and XGE interface),
ATM interface, POS interface, Layer 3 virtual Ethernet interface (that is,
virtual-Ethernet interface), virtual template, Mp-group interface, MFR interface,
tunnel interface, VLAN interface, and virtual dial template (that is, dialer).
Layer 3 Ethernet interface (Ethernet interface, GE interface, and XGE interface),
ATM interface, POS interface, Layer 3 virtual Ethernet interface (that is,
virtual-Ethernet interface), virtual template, Mp-group interface, MFR interface,
tunnel interface, VLAN interface, and virtual dial template (that is, dialer).
Example
# Enable LDP for interface Ethernet 1/0.
<Sysname> System-view
[Sysname] interface ethernet 1/0
[Sysname-Ethernet1/0] mpls
[Sysname-Ethernet1/0] mpls ldp
mpls ldp advertisement
Syntax
mpls ldp advertisement { dod | du }
undo mpls ldp advertisement
View
Interface view
Parameter
dod: Works in downstream on demand (DoD) mode, advertising a label to FEC
binding in response to the explicit request of an upstream LSR.
binding in response to the explicit request of an upstream LSR.
du: Works in downstream unsolicited (DU) mode, advertising label to FEC bindings
to LSRs without explicitly requesting bindings.
to LSRs without explicitly requesting bindings.
Description
Use the mpls ldp advertisement command to specify the label advertisement
mode.
mode.
Use the undo mpls ldp advertisement command to restore the default.
By default, DU mode is used.
Note that changing the label advertisement mode will cause the existing sessions
to be reestablished, and the LSPs established by the sessions to be deleted and
reestablished.
to be reestablished, and the LSPs established by the sessions to be deleted and
reestablished.
Example
# Set the label advertisement mode to DoD.
<Sysname> System-view
[Sysname] interface ethernet 1/0
[Sysname-Ethernet1/0] mpls
[Sysname-Ethernet1/0] mpls ldp
[Sysname-Ethernet1/0] mpls ldp advertisement dod