Cisco ONS 15454 DWDM - TCC2;TCC2 P Card Reset

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12-23

Cisco ONS 15454 DWDM Reference Manual, R8.5

78-18343-02

Chapter 12 Cisco Transport Controller Operation

12.7 TCC2/TCC2P Card Reset

TL1 tunnel specifications and general capabilities include:

• 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.

12.7 TCC2/TCC2P Card Reset

You can reset the ONS 15454 TCC2/TCC2P card by using CTC (a soft reset) or by physically reseating

the card (a hard reset). A soft reset reboots the TCC2/TCC2P card and reloads the operating system and

the application software. Additionally, a hard reset temporarily removes power from the TCC2/TCC2P

card and clears all buffer memory.

You can apply a soft reset from CTC to either an active or standby TCC2/TCC2P card without affecting

traffic. If you need to perform a hard reset on an active TCC2/TCC2P card, put the TCC2/TCC2P card

into standby mode first by performing a soft reset.

Note When a CTC reset is performed on an active TCC2/TCC2P card, the AIC-I card goes through an

initialization process and also resets because it is controlled by the active TCC2/TCC2P card.

12.8 TCC2/TCC2P Card Database

When dual TCC2/TCC2P cards are installed in the ONS 15454, each TCC2/TCC2P card hosts a separate

database; therefore, the protect card database is available if the database on the working TCC2/TCC2P

fails. You can also store a backup version of the database on the workstation running CTC. This

Potential to breach DCN

from DCC using IP.

Possible Not possible A potential exists to breach a DCN from a DCC using IP. This

potential does not exist for TL1 tunnels.

IP route management Expensive Automatic For static IP-over-CLNS tunnels, route changes require manual

provisioning at network routers, GNEs, and ENEs. For TL1

tunnels, route changes are automatic.

Flow control Weak Strong TL1 tunnels provide the best flow control.

Bandwidth sharing

among multiple

applications

Weak Best —

Tunnel lifecycle Fixed CTC session TL1 tunnels are terminated when the CTC session ends. Static

IP-over-CLNS tunnels exist until they are deleted in CTC.

Table 12-15 TL1 and Static IP-Over-CLNS Tunnels Comparison (continued)

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