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

92 C 4: C
HAPTER ONFIGURING
Configuring UNI and
IMA Groups
P B S330/S310 M
ATH UILDER ODULES
Table 22 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 features a single T1/E1 port and does not support IMA or
UNI groups.
The DS3/E3 UNI shares the same queue (Queue 1) as the Group 1 IMA UNI;
therefore, if a DS3/E3 expansion card is installed in slot 9, the system deletes
Group 1 and all corresponding VCs on startup and generates an information only
alarm. Furthermore, you cannot add Group 1 if a DS3/E3 expansion card is
installed—either in the chassis or in the database. If you change the card type for
slot 9 to DS3/E3 via the List Card menu, Group 1 and the corresponding VCs are
not deleted until the system is restarted.

Adding UNI Groups

To set up a UNI group, follow these steps:
1 From the Configuration Management menu, select [1] Manage Card to display the
List Card menu, shown earlier in Figure 51.
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 58.
3 From the T1 (DS1) UNI or E1 UNI Configuration menu, select [3] Group
Configuration to display the Group menu, shown in Figure 61.
, 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