Q&A
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
Page 3 of 7
Q.
Should I expect the current Cisco EtherSwitch Network Modules to reach end-of-sale status soon?
A.
No plan for end of sale of either of these cards currently exists. The existing Cisco EtherSwitch Network
Modules provide a switching option to the installed base of Cisco 2811, 2821, 2851, 3825, and 3845 Integrated
Services Routers.
Q.
What are the part numbers and details?
A.
For information regarding part numbers, please consult the Cisco Enhanced EtherSwitch Service Modules data
sheet at:
http://www.cisco.com/en/US/prod/collateral/routers/ps10536/data_sheet_c78-
553980_ps10537_Products_Data_Sheet.html
Q.
What Small Form-Factor Pluggables (SFPs) are supported?
A.
For information regarding the supported SFPs, please consult the Cisco Enhanced EtherSwitch Service
Modules data sheet at:
http://www.cisco.com/en/US/prod/collateral/routers/ps10536/data_sheet_c78-
553980_ps10537_Products_Data_Sheet.html
Q.
What is the function of the Multi Gigabit Fabric Interface (MGFI)?
A.
The MGFI provides direct high-performance connectivity between enhanced high-speed WAN interface cards
(EHWICs), Cisco High-Density Packet Voice Digital Signal Processor Modules (PVDM3s), service modules, and
Cisco Service Ready Engine (SRE) Internal Services Modules (ISMs) through the backplane without CPU
involvement. It is not backward-compatible with the (HWIC-4ESW, HWIC-9ESW or NM-16ESW). The MGF
switch supports frames sizes up to 9K, and it supports shaping of traffic going to a service module.
Q.
What is the function of High-speed Intra chassis Module (HIMI)?
A.
HIMI provides the capability to establish a 1-Gbps aggregate connection between two switch modules over the
MGF. Any service module, ISM, and EHWIC can be interconnected through HIMI. A high-speed WAN interface
card (HWIC) cannot participate in HIMI. Each HIMI connection could have up to 1-Gbps throughput.
Q.
Which platforms support HIMI and how many HIMI connections can be supported in each platform?
A.
Table 2 lists the platforms that support HIMI.
Table 3.
Platforms that Support HIMI
Model
Cisco 29211
Cisco 2921
Cisco 2951
Cisco 3925
Cisco 3945
HIMI Connection
1
1
1
2
2
Q.
What is the function of VLAN Connect, and how many Connect VLAN can be supported in each
platform?
A.
VLAN Connect enables traffic in a certain VLAN from one module to be directed to another module through the
MGF. This feature should be enabled if traffic within a VALN needs to be sent from one module to another;
therefore the traffic can be monitored on a particular port or VLAN. This feature is supported only with EHWICs
and service modules.
Table 4.
Table 4: Platforms that support VLAN connect
Model
1941
2901
Cisco 29211
Cisco 2921
Cisco 2951
Cisco 3925
Cisco 3945
VLAN connection
3
3
5
5
7
7
11
Q.
Can I mix ES2 and ES3 modules in the same chassis and insert them into any slots?
A.
Yes.
Q.
Can I mix POE and non-POE modules in the same chassis and insert them into any slots?
A.
Yes.
