Ctc Card Reset - Cisco ONS 15600 Reference Manual

4.7 CTC Card Reset

Table 4-9 TL1 and Static IP-Over-CLNS Tunnels Comparison (continued)
Category
Potential to breach DCN
from DCC using IP
IP route management
Flow control
Bandwidth sharing
among multiple
applications
Tunnel lifecycle
TL1 tunnel specifications and general capabilities include:
•
•
•
•
•
4.7 CTC Card Reset
You can reset the ONS 15600 SDH cards by using CTC (a soft reset) or by physically reseating a TSC
card (a hard reset). A soft reset on the TSC reboots the TSC and reloads the operating system and the
application software. Additionally, a hard reset temporarily removes power from the TSC card and clears
all buffer memory.
You can apply a soft reset from CTC to either an active or standby TSC without affecting traffic. A hard
reset temporarily removes power from the TSC and clears all buffer memory. You should only perform
a hard reset (or a card pull) on a standby TSC. If you need to perform a CTC hard reset or card pull on
an active TSC, put the TSC into standby mode first by performing a soft reset.
A soft reset on an optical card with an active port in a 1+1 protection group will result in a loss of all
DCC traffic terminated or tunneled on the active port for the duration of the reset time. A soft reset of
an optical card with a standby port in a 1+1 protection group will not affect DCC traffic. A CTC hard
reset of an optical card causes a switch to the protect card.
Cisco ONS 15600 SDH Reference Manual, Release 9.0
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Static
IP-Over-CLNS TL1 Tunnel
Possible Not possible
Expensive Automatic
Weak Strong
Weak Best
Fixed CTC session TL1 tunnels are terminated when the CTC session ends. Static
Each tunnel generally supports between six to eight ENEs, depending on the number of tunnels at
the ENE.
Each CTC session can support up to 32 tunnels.
The TL1 tunnel database is stored locally in the CTC Preferences file.
Automatic tunnel reconnection when the tunnel goes down.
Each ONS NE can support at least 16 concurrent tunnels.
Comments
A potential exists to breach a DCN from a DCC using IP. This
potential does not exist for TL1 tunnels.
For static IP-over-CLNS tunnels, route changes require manual
provisioning at network routers, GNEs, and ENEs. For TL1
tunnels, route changes are automatic.
TL1 tunnels provide the best flow control.
—
IP-over-CLNS tunnels exist until they are deleted in CTC.
Chapter 4 Cisco Transport Controller Operation
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