Cisco Systems 3825 manual New Features in Cisco IOS Release 12.416MR2

Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router

New Features in Cisco IOS Release 12.4(16)MR2

Figure 1-5 Example of Cisco 3825 Router VWIC and NM-2W Configuration Options Block Diagram

GSM

•VWIC-2T1/E1-RAN used for T1/E1

•*MUST* reside in one of four WIC slots to traverse HDLC Ctrl (8 GSM E1 max)

UMTS

•VWIC-2T1/E1-RAN used for T1/E1

•VWIC FPGA unused for UMTS

•Direct routing to

AIM-ATM

IP

•VWIC-2T1/E1-RAN used for T1/E1

•VWIC FPGA unused for IP

•Direct routing to

IOS CPU

	AIM-ATM-8						IOS CPU
	Module on
	Motherboard
	NM - 2W		NM - 2W					HDLC Ctrl
RAN WIC RAN WIC		RAN WIC RAN WIC		RAN WIC		RAN WIC	RAN WIC	RAN WIC	280206
UMTS	IP	UMTS	IP	UMTS	UMTS		IP	GSM
lub		lub		lub		lub		Abis

New Features in Cisco IOS Release 12.4(16)MR2

With Cisco IOS Release 12.4(16)MR2, the Cisco MWR 1941-DC-A router supports the following feature:

•Keyword ignore-vpi-vci Added to xconnect Command, page 1-13

Keyword ignore-vpi-vci Added to xconnect Command

With the ignore-vpi-vcikeyword configured, the MWR ignores the VPI/VCI value in the PW packet and does a blind rewrite with the local configured AC-side PVC's VPI/VCI value. This applies only when the xconnect command is configured under the PVC, which is the N:1 with N=1 special case. It does not apply when the xconnect command is configured under the subinterface, which supports N>1.

The xconnect command with keyword ignore-vpi-vciresults in the PVC mapping being done in a cooperative way if the MWR works the same way as the receiving router. Without this command, the MWR checks the VPI/VCI value inside PW packet for matches against the local configured PVC or PVC-mapping. With the ignore-vpi-vcikeyword configured, the MWR ignores the VPI/VCI header inside the received PW packet and does a blind rewrite with the local configured AC-side PVC's VPI/VCI value.

New Features in Cisco IOS Release 12.4(16)MR1

With Cisco IOS Release 12.4(16)MR1, the Cisco 3825 router supports the following:

Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide

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