Cisco Systems 9000 Manual De Usuario

Each RSP/RP card has two RJ-45 media-dependent interface (MDI) Ethernet management LAN ports: 
MGT LAN 0 and MGT LAN 1. These ports are used for IEEE 802.3u 100BASE-TX (100 Mbps), or 
1000BASE-T (1000 Mbps) Ethernet connections. For the management port locations, see 

.

The transmission speed of the management LAN ports is not user-configurable. The transmission speed 
is set through an autosensing scheme on the RSP/RP; the speed is determined by the network that the 
Ethernet port is connected to. The combined total input rate of both MGT LAN 0 and MGT LAN 1 is 
about 12 Mbps. 

Management port characteristics are:

Maximum transmission unit (MTU) is fixed at 1514 and cannot be configured.

Flow control is disabled and cannot be configured.

Input unicast packets with an unknown destination address are filtered and dropped.

Autonegotiation of port speed (100/1000) and duplex (full/half) is supported. Autonegotiation 
cannot be disabled.

 lists the signals used on the Management LAN ports.

The Management LAN connectors have integral LED indicators (

). When lit, these LEDs 

indicate:

Green (LINK)—Connection is alive.

Amber (ACT)—Connection is active.

1

Transmit+

BI_DA+

2

Transmit–

BI_DA–

3

Receive+ BI_DB+

4

Unused

BI_DC+

5

Unused

BI_DC–

6

Receive–

BI_DB–

7

Unused

BI_DD+

8

Unused

BI_DD–