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June 11, 1999
This document describes important notes and caveats for the Catalyst 2820 ATM modules.
These release notes contain the following topics:
The ATM modules use Catalyst 2820 firmware version 7.02 or above. You can check the installed firmware version by using the firmware menu. For firmware upgrade procedures, refer to the Catalyst 2820 Series Installation and Configuration Guide. You can access this document on CCO.
Cisco IOS Release 11.3T is already installed on the ATM modules. However, you can download the IOS 12.0(5) module Flash image from the Cisco Connection Online (CCO). If the software gets corrupted, use the firmware configuration menu to reinstall the module IOS Flash image. For details on how to install the module Flash image, refer to the Catalyst 2820 Series Installation and Configuration Guide.
You must tighten the screws while inserting the module in the switch.
Warning 
Tighten screws to activate.
Waarschuwing Schroeven aandraaien om te activeren.
Varoitus Aktivoi kiristämällä ruuvit.
Attention Pour activer : serrez les vis.
Warnung Schrauben anziehen für Aktivierung.
Avvertenza Per attivare: stringere la vite.
Advarsel Stram skruene for å aktivere.
Aviso Aperte os parafusos para ativar.
¡Advertencia! Para activar, apriete los tornillos.
Varning! Aktivera genom att dra åt skruvarna
.
If you forget your password for the ATM modules, you can reset the password to the factory default by doing the following:
Step 1 Go to the main menu of firmware version 7.02.
Step 2 Enter P, and press Return.
The Port Configuration menu appears.
Step 3 Enter F, and press Return.
The default password is no password.
There are no new features for this release. However, see "Resolved Caveats" section for a list of resolved caveats included in this release.
Each ATM trunk supports a maximum of 64 active virtual LANs (VLANs) at one time.
This release of the ATM modules supports multiple emulated LANs (ELANs). You can logically group users on Ethernet and ATM networks by mapping VLANs on the Ethernet network to ELANs on the ATM network.
The ATM modules support multiple VLAN mappings for RFC-1483 Logical Link Control (LLC) encapsulation. With RFC 1483, you can transport Ethernet frames over PVCs.
| Command | Description | Type | Mode |
|---|---|---|---|
atm bind | Binds a permanent virtual connection (PVC) to or from a VLAN. | IOS/ATM | P |
show atm vlan | Shows the relationship between the VLAN and the PVCs. | IOS/ATM | P |
| Command | Description | Type | Mode |
|---|---|---|---|
show controller address-table | Shows the address table entries. | IOS/ATM | EXEC |
show controller atm | Shows the ATM segmentation and reassembly (SAR) counters. | IOS/ATM | EXEC |
show controller eth | Displays the MAC counters. | IOS/ATM | EXEC |
show controller hostif | Displays the host I/F counters. | IOS/ATM | EXEC |
show controller mem | Displays the memory buffer pools. | IOS/ATM | EXEC |
show controller relay | Displays the Ethernet-to-ATM and ATM-to-Ethernet relay counters. | IOS/ATM | EXEC |
show controller rfc | Displays the RFC-1483 counters. | IOS/ATM | EXEC |
show controller sonet | Displays the SONET counters. | IOS/ATM | EXEC |
If your attempt to upgrade the ATM module firmware fails while the module is in normal operation, the expansion slot LED on the Catalyst 2820 switch turns amber. The module continues normal operation, but the module image stored in the Flash memory is corrupted. When you reset the ATM module, it will not find a valid Cisco IOS image, and the ATM module will not past the power-on self-test (POST). To correct this problem, repeat the firmware upgrade procedure to download a new firmware image on the ATM module.
The Cisco IOS ping and traceroute commands are not supported.
You cannot save your running configuration to a network Trivial File Transfer Protocol (TFTP) server.
The LAN emulation (LANE) client configured on the ATM modules responds to a LANE flush request by sending an incomplete flush response. The Cisco LAN emulation client (LEC) implementation accepts the flush response. However, this response might cause problems with LANE implementations from other vendors.
If you send excessive multicast traffic from the ATM module to Ethernet ports while Inter-Switch Link (ISL) trunking is enabled on the ATM module, the Ethernet ports might generate cyclic redundancy check (CRC) errors. To work around this problem, do one of the following:
The product documentation for the Catalyst 2820 switches is as follows:
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Posted: Thu Jul 22 18:11:55 PDT 1999
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