Services Overview
84
FD 100/320Gbps NT and FX NT IHub Services Guide
3HH-11985-AAAA-TQZZA Issue: 13
3.17.3.6 path-mtu
Table 13 path-mtu command
Description This command creates associations between one or more label switched paths (LSPs) and an
Multi- Protocol Label Switching (MPLS) Service Distribution Point (SDP). This command is
implemented only on MPLS-type encapsulated SDPs.
In MPLS SDP configurations either one LSP can be specified or LDP can be enabled. The SDP
ldp and lsp commands are mutually exclusive. If an LSP is specified on an MPLS SDP, then
LDP cannot be enabled on the SDP. To enable LDP on the SDP when an LSP is already
specified, the LSP must be removed from the configuration using the no lsp lsp-name
command.
Alternatively, if LDP is already enabled on an MPLS SDP, then an LSP cannot be specified on
the SDP. To specify an LSP on the SDP, the LDP must be disabled. The LSP must have
already been created in the configure>router>mpls context. with a valid far-end IP address.
If no LSP is associated with an MPLS SDP, the SDP cannot enter the operationally up state.
The SDP can be administratively enabled (no shutdown) with no LSP associations. The
lsp-name may be shutdown, causing the association with the SDP to be operationally down
(the LSP will not be used by the SDP).
LSP SDPs also require that the TLDP signaling is specified.
The no form of this command deletes the LSP association from an SDP. If the lsp-name does
not exist as an association or as a configured LSP, no error is returned. An lsp-name must be
removed from all SDP associations before the lsp-name can be deleted from the system. The
SDP must be administratively disabled (shutdown) before the last lsp-name association with
the SDP is deleted.
Default none
Parameters lsp-name — The name of the LSP to associate with the SDP. An LSP name is case sensitive
and is limited to 32 ASCII 7-bit printable characters with no spaces. If an exact match of
lsp-name does not already exist as a defined LSP, an error message is generated. If
thelsp-name does exist and the LSP to IP address matches the SDP far-end IP address, the
association is created.
Item Description
(2 of 2)
Item Description
Syntax path-mtu octets
no path-mtu
Context configure>service>sdp sdp-id
Description This command configures the Maximum Transmission Unit (MTU) in bytes that the Service
Distribution Point (SDP) can transmit to the far-end ISAM router without packet dropping or IP
fragmentation overriding the SDP-type default path-mtu.
The default SDP-type path-mtu can be overridden on a per-SDP basis.
The no form of this command removes any path-mtu defined on the SDP and the SDP will
use the system default for the SDP type.
Default The default path-mtu defined on the system for the type of SDP is used.
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