Cisco Systems Cisco 12008 manual PRP Ethernet Connection Equipment

Connecting Route Processor Cables

Table 3-6	PRP Auxiliary Port Signals (Continued)
Auxiliary Port Pin		Signal	Input/Output	Description
6		RxD	Input	Receive Data
7		DSR	Input	Data Set Ready
8		CTS	Input	Clear To Send

PRP Ethernet Connection Equipment

There are two RJ-45 Ethernet interface receptacles on the PRP, providing media-dependent interface (MDI) Ethernet ports. These connections support IEEE 802.3 and IEEE 802.3u interfaces compliant with 10BASE-T and 100BASE-TX standards. The transmission speed of the Ethernet ports is auto-sensing by default and is user configurable.

The RJ-45 receptacles on the PRP provide two physical connection options for Ethernet interfaces. RJ-45 cables are not available from Cisco Systems; they are available from outside commercial cable vendors. To connect cables to the PRPs Ethernet interfaces (ports labeled ETH0 and ETH1), attach the Category 5 UTP cable directly to a RJ-45 receptacle on the PRP.

The Ethernet interfaces on the PRP are end-station devices, not repeaters; therefore, you must connect an Ethernet interface to a repeater or hub.

Note Only connect cables that comply with EIA/TIA-568 standards. (See Table 3-7 and Table 3-9 for cable recommendations and specifications.)

Caution The Ethernet ports are primarily used as a Telnet port into the Cisco 12000 series Internet Router, and for booting or accessing Cisco IOS software images over a network to which an Ethernet port is directly connected. Cisco Express Forwarding (CEF) functions are switched off by default for security reasons. Cisco strongly cautions you to consider the security implications of switching on CEF routing functions on these ports.

3-30Cisco 12008 Gigabit Switch Router Installation and Configuration Guide