Adding Link(s) to a TSC Port (on the Running Configuration)

Each TSC has four ports. Each of these ports connects to one or more links. The table below shows the link limitations for each TSC type.

Table 12-1 Link Limitations

TSC type	Maximum number of links per TSC	Maximum number of links per port	TSCs available with links...
V.35	4	1	2 or 4
E1	16	16	2, 4, 8 or 16
T1	16	16	2, 4, 8 or 16




	NOTE: The maximum number of links that you can use on your system depends on the platform license you have purchased.

If your license does not support the new total number of links that you want to use on a TSC, you will need to upgrade the platform license before adding links to your system (refer to Chapter 7 “Upgrading the Platform License”).

You can view the global platform license information using the cfgPlatform -view license command.

Each TSC has a maximum number of links that it can maintain - this number is determined when the TSC is ordered. If your required number of links exceeds this maximum, it may be possible to upgrade the link capability of the TSC: To do this, refer to “Upgrading TSCs”.

You can view your TSC’s link capability using the ss7HwInfo -c <tsc-id> command.

If it is not possible to enhance the link capability of your TSC, you will need to add another TSC before you can add links.

There is also a maximum number of links for each port. If the existing ports already have the maximum number of links assigned, you will need to configure another port before you can add links. This is described in the following procedure.




	NOTE: You do not need to power off the system in order to add links. You can also perform this upgrade without disturbing traffic, except if you need to modify a port configuration, in which case you will have to divert traffic from the TSC concerned.

All software steps in the following procedure must be performed on the active host on the running configuration.

You should be logged in as ocadmin.

To add link(s) to a port on an existing TSC:

If you need to connect another port to the SS7 network in order to add links, carry out the following (omit this step if you are adding links to an already connected port):
1. Connect the TSC cable port connector to the network cable.
2. Label the cable, stating what it is (E1, T1, V.35) and where it is connected to (TSC1, TSC2 etc).
3. Customize the TSC configuration (clockSource, coding, framing, etc.) according to your network using the cfgSs7Hw -update -modify -tsc command.
Add the new link(s) using the cfgSs7Hw -update -add -link command.
Make a note of the new link identifiers for the stack configuration.
Load the changes:
1. If you have modified the port configuration in Step 1.c of Step 1, divert the traffic from the TSC, as described in “Diverting Traffic”.
2. Run the command ss7HwLoad.
  Do not accept changes now - quit the tool or move to another window - if you accept the changes now, no rollback will be available.
3. If you have diverted the traffic from the TSC, restore it now, as described in “Restoring the Traffic”.
Add the link(s) to the stack. In the SS7 Monitor screen, select
Configure Entities|Config MTP|Config lk/lkset and add the new link(s).
Press "C" to checkpoint the modifications.
Activate the link(s). In the Stack Monitor screen, select Monitor Entities|Monit MTP|Monit lk/lkset and type A.
All elements at the network end should be configured and activated, so that the links can be aligned.
Check the state of the links using the SS7 Monitor. To do this, follow the path Monitor Entities|Monit MTP|Monit lk/lkset.
The links should be active.
If you are happy with the new configuration, make it the running configuration by carrying out either one of the following:
- run the command ss7HwAccept
- accept the updated configuration in the ss7HwLoad window.
If you are not happy with the new configuration, perform the rollback steps now. Refer to the “Rollback” section below.
If you have a 2-host platform, propagate the updated configuration. To do this, carry out one of the following:
- answer affirmatively in the ss7HwAccept or ss7HwLoad window
- execute the cfgPropagate command

Rollback

Deactivate the added link(s) on the stack. In the SS7 Monitor screen, select Monitor Entities|Monit MTP|Monit lk/lkset and deactivate the link(s).
Remove the added link(s) from the stack. In the SS7 Monitor screen, select Configure Entities|Config MTP|Config lk/lkset and remove the link(s).
Press "C" to checkpoint the modifications.
Rollback the changes:
1. If you have modified the port configuration in Step 1.c of Step 1 of the main procedure, divert the traffic from the TSC, as described in “Diverting Traffic”.
2. Rollback the configuration changes by carrying out either one of the following:
  - run the command ss7HwRollback
  - reject the updated configuration in the ss7HwLoad window.
3. If you have diverted the traffic from the TSC, restore it now, as described in “Restoring the Traffic”.
If you connected an additional port to the network in Step 1 of the main procedure, disconnect the cable at the network end.

Adding Link(s) to a TSC Port (on the Running Configuration)

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