Configuration Guide for A7000 dl T1 and E1 WAN Interfaces 2005-12

Configuring Ethernet Interfaces Understanding SROS Queuing Methods
6 5991-3823
Configuring E1 Interfaces
There are four main settings to consider when configuring E1 network interfaces. The line coding
(coding), framing format (framing), active channels (tdm-group), and clock source (clock source) must
all be configured to match the circuit supplied by your network provider. By default, all SROS router E1
interfaces are configured for standard multi-frame without the optional CRC4 error correction (no framing
crc4), and to recover clocking from the network circuit (clock source line). Generally, the line coding,
framing format, and clock source default values will be the correct ones for your application and should
not be changed.
Each configured E1 interface must have the active channels specified using the tdm-group command
because there are no default TDM groups. The active channels are entered as a single number representing
1 of the 31 E1 channel timeslots or as a contiguous group of channels.
The following example commands specify the configuration parameters required for a standard E1
interface:
ProCurve>enable
ProCurve#config terminal
ProCurve(config)#interface e1 1/1
ProCurve(config-e1 1/1)#tdm-group 1 timeslots 1-31
ProCurve(config-e1 1/1)#no shutdown
ProCurve(config-e1 1/1)#exit
The following example specifies the configuration parameters required for a standard E1 interface using
the Web GUI:
E1 Interface
Configuration
Parameters