Instruction manual

Upgrading to the Double-Density Hardware
296-1011-220 Rel. 4.1, Doc. Rev. 07.02 1-25
Upgrading to Release 4.1
Double-Density Upgrade Procedure
Step Action
1 Upgrade to CVX Release 4.1.
2 Use the vinfo command to verify the correct version and operation of
the CVX switch after the software upgrade is complete.
3 Remove all traffic from the CVX switch using the shelf dry command.
On DAC cards, wait until all DS0s are removed from service before
proceeding.
4 If changing the type of SCC being used, make sure to remove any
configuration containers that will not be referenced by the new SCC-II.
For example, if the SCC was the 3xENET+HSSI and the new SCC-II is
the 5xENET, then delete all Frame Relay and HSSI containers prior to
powering down the CVX switch. Also make any appropriate network
design changes to your network to prevent the loss of routing to and
from the CVX switch.
5 Power down the CVX switch.
6 Remove single density hardware and replace with the new
double-density hardware in the same chassis slots, replacing the RLTM
or LTM before inserting SCC-II.
Install the double-double-density MACs into the same slots that
occupied the single density MACs.
Install the double-density DACs into the same slots that occupied the
single density DACs.
The master and redundant SCC-II hardware installs in the SCC slots.
If using a 24xT1/E1 DAC, ensure that the LTM aligns with the DAC SM
slot and the next higher slot. For example, if the DAC SM is installed in
slot 2, the LTM should be installed in slots 2 and 3.
7 Recable the LTMs so that each T1/E1/T3 is replaced into the same port
prior to the upgrade.
This will ensure that the cabling matches the existing software
configuration. For example, if a T3 was used, make sure to place the
T3 cables into T3 1 (labeled TX1 and RX1) on the new 2 x
DS3-DAC-LTM.
8 Remove the flash card from the master SCC and place it into the new
master SCC-II.