Configuring Uni And Ima Groups; Adding Uni Groups - 3Com SuperStack II PathBuilder S330 Reference Manual

80 C 4: C
HAPTER ONFIGURING
Configuring UNI and
IMA Groups
P B S330/S310 M
ATH UILDER ODULES
Table 5 Bit Error Rates Translated into Total Number of Errors
Bit
Error
Rate Total Errors in
(BER) 1 second
-4
10 15
-5
10 1.5
-6
10 0.15
10 -7 0.015
The T1 (DS1)/E1 UNI Configuration menu lists the following additional read-only
parameters:
Group — The number of the group to which the ports belong.
Tx LID — Transmit link identification. This should match the Rx LID of the remote
end IMA device. Tx LID is displayed only if the port is part of an IMA group.
Rx LID — Receive link identification. This should match the Tx LID of the remote
end IMA device. Rx LID is displayed only if the port is part of an IMA group.
Operation Link Delay — Operation link delay synchronized, in msec. This is the
actual link delay used to synchronize the IMA links. Operations LDS is displayed
only if the port is part of an IMA group.
6 Select [9] Previous Menu to return to the T1/E1 UNI Configuration menu.
7 Repeat steps 3 and 4 for any other T1/E1 ports that you want to configure.
You can map two to four T1/E1 ports into an IMA group, thereby creating a
logical, inverse-multiplexed, high-speed link. The PathBuilder S330 also supports
UNI groups.
The PathBuilder S310 switch features a single T1/E1 port and supports a UNI
group on this port; it does not support IMA groups. The PathBuilder S330
supports up to four UNI or IMA groups using any combination of ports on the
standard T1/E1 UNI with IMA interface and (if installed) the optional four-port IMA
expansion module.
Expansion slot 9 shares the same queue (queue 1) as the group 1 IMA UNI;
therefore, if an expansion module (DS3/E3 UNI or four-port IMA) is installed in
slot 9, the system deletes group 1 and all corresponding virtual circuits on startup
and generates an information only alarm. Furthermore, you cannot add group 1 if
an expansion module is installed in slot 9—either in the chassis or in the database.
If you enter a card type for slot 9 via the List Card menu, group 1 and the
corresponding virtual circuits are not deleted until the system is restarted.

Adding UNI Groups

To set up a UNI group:
1 From the Configuration Management menu, select [1] Manage Card to open the
List Card menu, shown earlier in Figure 60.
2 From the List Card menu, select [3] DS1 UNI to open the T1 (DS1) UNI or E1 UNI
Configuration menu, shown earlier in Figure 67.
, P , A
ORTS AND PPLICATIONS
Total Errors in Total Errors in
1 Minute 2 Minutes
900 1800
90 180
9 18
1 2
Total Errors in Total Errors in
5 Minutes 15 Minutes
4500 13500
450 1350
45 135
5 13