Interface Configuration
7750 SR Interface Configuration Guide Page 485
Default no channelized.
Parameters ds1 — Specifies that the channel is DS-1.
e1 — Specifies that the channel is E-1.
cisco-hdlc
Syntax cisco-hdlc
Context config>port>tdm>ds1>channel-group
config>port>tdm>ds3
config>port>tdm>e1>channel-group
config>port>tdm>e3
Description This command enables the context to configure Cisco HDLC parameters. Cisco HDLC is an encapsulation
protocol that governs information transfer. It specifies a data encapsulation method on synchronous serial
links using frame characters and checksums.
Cisco HDLC monitors line status on a serial interface by exchanging keepalive request messages with peer
network devices. It also allows routers to discover IP addresses of neighbors by exchanging Serial Link
Address Resolution Protocol (SLARP) address-request and address-response messages with peer network.
Only IES SAPs (including SAPs in VPRN service) can provision a Cisco-HDLC-capable configuration.
clock-source
Syntax clock-source {loop-timed | node-timed | adaptive | differential}
Context config>port>tdm>ds1
config>port>tdm>ds3
config>port>tdm>e1
config>port>tdm>e3
Description This command configures the clock to be used for transmission of data out towards the line. The options are
to use the locally recovered clock from the line's receive data stream, the node central reference, or an adap-
tively recovered clock using the received packets.
The following tables show MDAs that support loop timing at DS3/E3 and DS1/E1 channelization options.
TDM DS3/E3 LoopTimed Default
Channelized OC-12 No node-timed
Channelized OC-3 No node-timed
Channelized DS3/E3 No node-timed
Channelized ASAP OC-12 Yes node-timed
Channelized ASAP OC-3 Yes node-timed
To Next Page
Loading...
