Interoperability With Alcatel-Lucent Sr Series; Configuring Mpls - Alcatel-Lucent OmniSwitch 6850-48 Network Configuration Manual

Configuring MPLS

Interoperability With Alcatel-Lucent SR Series

This section contains interoperability differences and similarities between the Alcatel-Lucent OmniSwitch
implementation of MPLS and the Alcatel-Lucent Service Router (SR) Series implementation of MPLS.
Command Line Interface (CLI)
Most of the configure, show, and clear CLI commands for VPLS on the OmniSwitch are compatible with
the Service Router product family running R6.0. However, the following differences exist between the
CLI commands offered on the OmniSwitch and those offered on the SR products:
•
Flat-based CLI on the OmniSwitch; context-based CLI on the SR.
•
Limited options for VPLS service CLI commands.
•
Some show command output sections or fields do not apply to the OmniSwitch. Where possible, these
sections or fields were removed or display "N/A" in the field contents.
•
The OmniSwitch uses a slot/port designation for port numbering; the SR uses a slot/mod/port designa-
tion for port numbering.
System IP Address
The system IP address identifies a router as an MPLS router. On the OmniSwitch, however, the user-
configured Loopback0 interface address is used as the system IP address.
Fast ReRoute (FRR)
The OmniSwitch provides a static FRR mechanism and the SR Series provides a dynamic FRR mecha-
nism. As a result, the following differences exist between the two implementations:
•
Dynamic FRR automatically computes a backup tunnel path. Static FRR requires user-configuration of
the backup tunnel path.
•
Dynamic FRR does not require any configuration on transit routers. Static FRR requires configuration
on every hop in the backup tunnel path.
•
Dynamic FRR requires an underlying IGP to function. Static FRR does not require any underlying
protocol to work.
Note. Interoperability between the SR Series dynamic FRR and the AOS OmniSwitch static FRR is not
supported.
OmniSwitch AOS Release 6 Network Configuration Guide
Interoperability With Alcatel-Lucent SR Series
September 2009 page 10-17