Interface Configuration Guide 7705 SAR Interfaces
Edition: 01 3HE 11011 AAAC TQZZA 489
A network port is used as an uplink to connect to the packet network and transport the PPP
services. Network mode applies to DS3 and E3 ports. When a DS3/E3 port is configured for
network mode, the encap-type must be set to ppp-auto.
The mode can be changed between access and network provided that encap-type has not
been configured yet. If encap-type has been configured, the DS3/E3 port must be first
deleted and then reconfigured with the required encap-type.
The no form of this command reverts to the default.
Default access
Parameters access — configures the port as service access
network — configures the port as a network uplink
mtu
Syntax mtu mtu-bytes
no mtu
Context config>port>tdm>ds3
config>port>tdm>e3
Description This command configures the maximum payload MTU size for a DS3/E3 port configured for
PPP. Packets that are received larger than the MTU are discarded. Packets that cannot be
fragmented at egress and exceed the MTU are also discarded.
The no form of this command restores the default value.
Default 1572 (for ppp-auto)
Parameters mtu-bytes — sets the maximum allowable size of the MTU, expressed as an integer
Values 512 to 2090 (in bytes)
ppp
Syntax ppp
Context config>port>tdm>ds3
config>port>tdm>e3
Description This command enables access to the context to configure the LCP operational parameters
for a DS3/E3 port.
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