Cisco 3105 Manual - Halaman 21

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Overview

For More Information

6-Port 1-Gb SX/10-Gb SR/10-Gb LR/25-Gb SR/25-Gb LR Network

Module with Hardware Bypass

The Secure Firewall 3100 chassis has one network module slot named NM-2. Network modules are optional,

removable I/O modules that provide either additional ports or different interface types. The network module

plugs into the chassis on the front panel. See

slot on the chassis.

The FPR-X-NM-6X1SXF, FPR-X-NM-6X10SRF, FPR-X-NM-6X10LRF, FPR-X-NM-6X25SRF, and

FPR-X-NM-6X25LRF hardware bypass network modules have six ports that are numbered from top to

bottom, left to right. Pair ports 1 and 2, 3 and 4, and 5 and 6 to form hardware bypass paired sets. In hardware

bypass mode, data is not processed by the Secure Firewall 3100 but is routed to the paired port. This network

module has built-in SPF transceivers. Hot swapping and field replacement of transceivers are not supported.

Hardware bypass (also known as fail-to-wire) is a physical layer (Layer 1) bypass that allows paired interfaces

to go into bypass mode so that the hardware forwards packets between these port pairs without software

intervention. Hardware bypass provides network connectivity when there are software or hardware failures.

Hardware bypass is useful on ports where the secure firewall is only monitoring or logging traffic. The

6-Port 1-Gb SX/10-Gb SR/10-Gb LR/25-Gb SR/25-Gb LR Network Module with Hardware Bypass

Ethernet 2/3 and Ethernet 2/4

Ports 3 and 4 are paired together to form a

hardware bypass pair. LED B2 applies to this

paired port.

Ethernet 2/7 and Ethernet 2/8

Ports 7 and 8 are paired together to form a

hardware bypass pair. LED B4 applies to this

paired port.

Power LED

Left Port LED

• Unlit—No connection or port is not in use.

• Green—Link up.

• Green, flashing—Network activity.

• See

6-Port 1-Gb SX/10-Gb SR/10-Gb LR/25-Gb SR/25-Gb LR Network Module with Hardware

Bypass , on page 21

for a description of the 1/10/25-Gb network module.

• See

4-Port 40-Gb Network Module, on page 17

• See

8-Port 1/10/25-Gb Network Module, on page 15

module.

• See

Install, Remove, and Replace the Network Module

network modules.

Ethernet 2/5 and Ethernet 2/6

Ports 5 and 6 are paired together to form a

hardware bypass pair. LED B3 applies to this

paired port.

Captive screw

Handle

Right Port LED

• Unlit—No connection or port is not in use.

• Green—Link up.

• Green, flashing—Network activity.

for a description of the 40-Gb network module.

for a description of the 1/10/25-Gb network

for the procedure for removing and replacing

Front Panel, on page 8

for the location of the network module

Overview