New Features In Cisco Ios Release 12.4(16)Mr2; Keyword Ignore-Vpi-Vci Added To Xconnect Command; New Features In Cisco Ios Release 12.4(16)Mr1 - Cisco 3825 Software Configuration Manual

Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router
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)
AIM-ATM-8
Module on
Motherboard
NM - 2W
RAN WIC RAN WIC
UMTS UMTS
IP
lub

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

With the ignore-vpi-vci keyword 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-vci results 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-vci keyword 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:
OL-15667-03
UMTS
• VWIC-2T1/E1-RAN
used for T1/E1
• VWIC FPGA unused
for UMTS
• Direct routing to
AIM-ATM
NM - 2W
RAN WIC RAN WIC
IP
lub
Keyword ignore-vpi-vci Added to xconnect Command, page 1-13
• VWIC-2T1/E1-RAN
• VWIC FPGA unused
• Direct routing to
IOS CPU
RAN WIC RAN WIC
UMTS UMTS
lub lub
Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide
New Features in Cisco IOS Release 12.4(16)MR2
IP
used for T1/E1
for IP
IOS CPU
HDLC Ctrl
RAN WIC RAN WIC
GSM
IP
Abis
1-13