General Properties
| Property | Description |
|---|---|
| dynamic-label-range (range of integer[16..1048575]; Default: 16-1048575) | Range of Label numbers used for dynamic allocation. First 16 labels are reserved for special purposes (as defined in RFC). If you intend to configure labels statically then adjust dynamic default range not to include numbers that will be used in static configuration. |
| propagate-ttl (yes | no; Default: yes) | Whether to copy TTL values from IP header to MPLS header. If this option is set to no then hops inside MPLS cloud will be invisible from traceroutes. |
Forwarding Table
Sub-menu: /mpls forwarding-table
...
| Code Block | ||
|---|---|---|
| ||
[admin@RB493G] /mpls forwarding-table> print
Flags: L - ldp, V - vpls, T - traffic-eng
# IN-LABEL OUT-LABELS DESTINATION IN NEXTHOP
0 expl-null
1 L 105 10.255.255.36/32 lo 10.5.101.36
2 L 120 112 3.3.3.1/32 lo 10.5.101.3
3 L 121 113 3.3.3.2/32 lo 10.5.101.3
[admin@RB493G] /mpls forwarding-table> |
You can see that all labels are LDP signaled. Note that for entry #1 there is no out-label, it means that MPLS label switching will not occur, packet will be sent out as regular IP packet. In the other hand entry #2 has in-label and out-label, which means that during packet forwarding label will be switched from 120 to 112.
Interface
Sub-menu: /mpls interface
...
Note: If Ethernet card does not support Jumbo frames, then MPLS MTU for all interfaces on all devices participating in LSP should be set to 1500
Properties
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| Code Block | ||
|---|---|---|
| ||
[admin@RB493G] /mpls interface> print
Flags: X - disabled
# INTERFACE MPLS-MTU
0 all 1508
|
Local Bindings
Sub-menu: /mpls local-bindings
...
Remote Bindings
Sub-menu: /mpls remote-bindings
...