Configuring An Atm E1/T1 Interface; Configuring An Ima Group - 3Com MSR 50 Series Configuration Manual

Configuring an ATM
E1/T1 Interface
n
Configuring an IMA
Group
The configuration of IMA-E1/T1 includes two parts: physical level parameters of
ATM E1/T1 interfaces and IMA features. If no IMA group is configured for
transmitting ATM cell streams, the cells are distributed directly over E1/T1 links.
You can, however, assign multiple IMA-E1/T1 interfaces to an IMA group to form a
higher-speed IMA interface link for ATM cell transmission.
For both IMA groups and the E1/T1 links outside the groups, you can create PVCs,
specify service types, and configure the related parameters. For more information
(including the configuration of PVCs), refer to
ATM E1/T1 interface configuration includes interface configuration and IMA group
configuration.
Follow these steps to configure parameters for an ATM E1/T1 interface:
To do...
Enter system view
Enter ATM E1/T1 interface
view
Set the clock mode
Set the On an E1
framing interface
format
On a T1
interface
Set the line On an E1
coding format interface
On an T1
interface
Enable scrambling
Set the cable length
Set the loopback mode
Configure an IMA group
E1 configurations are supported on the IMA (E1) interface module and T1
configurations on the IMA (T1) interface module.
The line coding formats for IMA-E1 interfaces and IMA-T1 interfaces are fixed to
high density bipolar of order 3 (HDB3) and bipolar with 8-zero substitution (B8ZS).
They are not configurable.
Follow these steps to configure an IMA group:
IMA-E1/T1 Interface Configuration
"ATM Configuration" on page
Use the command...
system-view
interface atm
interface-number
clock { master | slave }
frame-format { crc4-adm |
no-crc4-adm }
frame-format { esf-adm |
sf-adm }
code { ami | hdb3 }
code { ami | b8zs }
scramble
cable { long | short }
loopback { cell | local |
payload | remote }
See Configuring IMA Groups
73
127.
Remarks
--
Required
Optional
The default is slave.
Optional
The default is CRC4 ADM.
Optional
The default is ESF ADM.
Optional
The default is HDB3.
Optional
The default is B8ZS.
Optional
Enabled by default.
Optional
The default is long, allowing
automatic cable length
adaptation.
Optional
Disabled by default.
Required