R3303-HP 6600/HSR6600 Routers Interface Configuration Guide

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Displaying and maintaining CT1 interfaces
Task Command Remarks
Display the status of a CT1
interface.
display controller t1 [ interface-number ] [ |
{ begin | exclude | include }
regular-expression ]
Available in any view.
Display the status of a channel set.
display interface serial
interface-number:set-number [ | { begin |
exclude | include } regular-expression ]
Available in any view.
Clear the controller counter for a
CE1 interface.
reset counters controller t1 interface-number
Available in user view.
Configuring an E1-F interface
E1-F interfaces, which are fractional E1 interfaces, are simplified CE1 interfaces. They are a cost-effective
alternative to CE1 interfaces where E1 access does not need multiple channel sets.
An E1-F interface operating in framed mode can only bind timeslots into one channel set. A CE1
interface can group and bundle timeslots randomly into multiple channel sets.
An E1-F interface can operate in either framed (the default) or unframed mode.
When an E1-F interface is working in unframed mode, it is a non-timeslot interface with 2048 kbps of
data bandwidth. It is logically equivalent to a synchronous serial interface where you can configure PPP,
HDLC, or FR at the link layer and IP at the network layer.
When an E1-F interface is working in framed mode, it is physically divided into 32 timeslots numbered
0 through 31. Except timeslot 0 used for transmitting synchronization information, all other timeslots can
randomly form one channel set. The rate of the interface is n × 64 kbps and its logical features are the
same as those of a synchronous serial interface where you can configure PPP and FR at the data link layer
and IP at the network layer.
Configuring an E1-F interface in framed mode
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter E1-F interface view.
interface serial interface-number N/A
3. Configure the interface to
operate in framed mode.
undo fe1 unframed
Optional.
The default is framed mode.
4. Bundle timeslots on the
interface.
fe1 timeslot-list list
Optional.
If no timeslot range is specified, all
timeslots are bundled by default.
5. Enable RAI detection on the
interface.
fe1 alarm detect rai
Optional.
Enabled by default.