The Cisco 3200 Series router recently implemented a change to the end cap on Cisco 3230 enclosure bundles. The enhancement provides customers with access to the routed (Layer 3) FE port on the front of the 3230 end cap. Prior to the change, the routed FE port was wired internally for connection to wireless mobile interface cards.
The modification changed one of the Fast Ethernet (FE) ports on the end cap from a switched (Layer 2) FE port to a routed (Layer 3) FE port. Before the change was made, the C3230 enclosure end cap provided external access for up to three FE switch ports from the Fast Ethernet Switching Mobile Interface Card (FESMIC). The new C3230 end cap now provides external access to the router FE Port from the Mobile Interface Card (MARC) and up to two FE switch ports from the FESMIC, depending on the number of WMICs in the bundle.
The purpose of this field notice is to inform customers the modification may require a new software configuration with 3230 systems containing the new end cap. Any Cisco 3230 enclosure bundles that ship from Cisco manufacturing after June 11, 2007 will have an end cap with the router FE port accessible.
Cisco has made two modifications to the C3230ENC bundles. The first change is a new internal wiring card that routes the MARC FE port to the end cap in exchange for one of the FESMIC ports. The second change is the end cap label identifies the MARC FE port.
There are several advantages to making the 3230 end cap modification.
Customers who purchase and deploy Cisco 3230ENC bundles before and after the change may require instructions to ensure a consistent configuration for every mobile access router deployed in a fleet of vehicles. The configurations may need to be changed depending on the number of switch ports in use as well as the types of devices connected to the port.
The change only affects Cisco 3230 enclosure bundles with "C3230ENC" in the product ID. For a list of all Cisco 3200 SKUs, see the Products Affected section above.
Cisco IOS router configurations may need to be altered to reflect the new WMIC interconnectivity. Interface level configurations as well as configurations referencing the affected interfaces will need to be changed with respect to the new enhancements being made. Pre-enhancement and post-enhancement hardware configurations are provided below to help guide any IOS configuration changes.
To ensure customers can manage the 3230ENC bundle configurations within a fleet of vehicles, it is suggested that customers create a database or file structure that associates the chassis serial number of each mobile router within their fleet to a vehicle ID (or similar unique reference). As well, it is recommended that customers outline the impact of the hardware changes referenced within this field notice against their currently installed routers and create alternate configuration files that can be utilized in the event a hardware replacment requires a software configuration change.
For additional information on Configuration Management, consult the Configuration Management: Best Practices White Paper available on Cisco.com.
How To Identify Hardware Levels
There are a number of ways to differentiate units with the MARC FE port accessible from the end cap.
End Cap Label
Units with a MARC FE port have a new label on the face plate. The new label identifies the MARC FE port as "MARC FE0X".
The other two switch FE ports are labeled FE0X and FE1X. Figure 1 shows how the end cap looked before the modification and Figure 2 shows how the end cap looks after the modification.
Remote Configuration Check
Users can also differentiate between the new and old wiring card configurations by remotely checking 3230 systems configurations. Users can check the hardware configuration of their 3200ENC bundles by viewing the output of the show cdp neighbors command on the MARC card. The output of this command is shown on both the old and new hardware configurations below.
CLI Output from Old Hardware Configurations
Router#show cdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID Local Intrfce Holdtme Capability Platform Port ID bridge Fas 0/0 173 T C3201WMIC-Fas 0 bridge Fas 2/2 169 T C3202WMIC-Fas 0 bridge Fas 2/3 160 T C3201WMIC-Fas 0
CLI Output from New Hardware Configurations
Router#show cdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID Local Intrfce Holdtme Capability Platform Port ID bridge Fas 2/1 173 T C3201WMIC-Fas 0 bridge Fas 2/2 169 T C3202WMIC-Fas 0 bridge Fas 2/3 160 T C3201WMIC-Fas 0
As the output depicts in Figure 4 above, a 3 WMIC configuration has all the WMICs connected to the FESMIC Fast Ethernet 2/1, 2/2 and 2/3 internal ports. As shown in Figure 3, the old hardware configuration always connects the first WMIC to the routable MARC Fast Ethernet 0/0 port.
Serial Number Identification
Cisco manufacturing implemented the 3230 end cap modification beginning with chassis serial number FHH1124B001. A chassis serial number can be interpreted as follows:
FHH - First 3 digits for Contract Manufacturer ID.
11 - Represent year. Note: 1997 is year 1.
24 - Represents week# in a year. Year starts with week 1.
B001 - 4 digit unique number.
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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