Cisco Systems 2600 manual Interface Numbering in Chassis with 1-RU Height

Chapter 1 Overview of Cisco 2600 Series Routers

Interface Numbering

Figure 1-11 Interface Numbering in Chassis with 1-RU Height

1 2

SERIAL
A/S
3	CN/LP RXC	RXD TXC TXD

2 CN/LP RXC RXD TXC TXD

1	CN/LP RXC	RXD TXC			W1
			TXD	CN/LP RXC
			0		RXD TXC TXD
					EN

10

9

8

7

	CONN	SERIAL
		W0		CONN	SERIAL	Cisco	2612
			W0
LINK	TOKEN RING				W0
		0/0 ACT	LINK
			ETHERNET
			0/0 ACT	CONSOLE
					AUX

6	5	3
		4

100-		1A
50	240V–
	/60 Hz	47 W

28308

Figure 1-12shows a router of 2-RU height with:

•A 2-port T1 network module in slot 1 (containing the following ports: T1 1/0 and T1 1/1)

•Two built-in Ethernet 10/100 interfaces—Fast Ethernet 0/0 and Fast Ethernet 0/1

•A WIC in each WIC slot (containing interfaces Serial 0/0 and Serial 0/1 in physical slot W0, interface Serial 0/2 in physical slot W1, and interface BRI 0/0 in physical slot W2)

–If physical slot W0 is empty and physical slot W1 contains a 1-port serial WIC, the interface number in the WIC is numbered Serial 0/0.

–If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port serial WIC, the interfaces in physical slot W0 are numbered Serial 0/0 and Serial 0/1, and the interface in physical slot W1 is numbered Serial 0/2.

–If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port BRI WIC, the interfaces in physical slot W0 are numbered Serial 0/0 and Serial 0/1, and the interface in physical slot W1 is numbered BRI 0/0.

Note The slot number for all WIC interfaces is always 0. (The W0 and W1 slot designations are for physical slot identification only.) Interfaces in the WICs are numbered from right to left, starting with 0/0 for each interface type, regardless of which physical slot the WICs are installed in.

Figure 1-12 Interface Numbering in Cisco 2691 Routers

NM-HDV

BANK 4					AL
	BANK 3			VWIC	LP	SEE
		BANK 2		2MFT-E1	CD
						MANUAL
			BANK 1		CTRLR E2	BEFORE
				BANK 0	CTRLR E1	INSTALLATION	TD	RD	LP	AL

	V0	SEE			CD
			MANUAL BEFORE		DSU	TD RD LP AL
				INSTALLATION
	EN				56K			CD
						SEE
						MANUAL BEFORE	INSTALLATION	DSU
								56K
								SEE
								MANUAL BEFORE
								INSTALLATION
T1 1/1	T1 1/0			BRI 0/0
									Serial 0/1
FastEthernet 0/1						Serial 0/2
						Compact Flash slot			Serial 0/0
					FastEthernet 0/0

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Cisco 2600 Series Routers Hardware Installation Guide

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