Guest

Cisco Catalyst 4900 Series Switches

Release Notes for the Cisco Catalyst 4948E-F Ethernet Switch on Release 12.2(54)WO

  • Viewing Options

  • PDF (388.9 KB)
  • Feedback
Release Notes for the Cisco Catalyst 4948E-F Ethernet Switch on Release 12.2(54)WO

Table Of Contents

Release Notes for the Cisco Catalyst 4948E-F Ethernet Switch on Release 12.2(54)WO

Contents

Cisco IOS Software Packaging for the
Cisco Catalyst 4948E-F Ethernet Switch

Support

System Requirements

Supported Hardware

Supported Features

Minimum and Recommended ROMMON Release

Limitations and Restrictions

Caveats

Open Caveats in Cisco IOS Release 12.2(54)WO

Resolved Caveats in Cisco IOS Release 12.2(54)WO

Troubleshooting

Netbooting from the ROMMON

Troubleshooting at the System Level

Troubleshooting Modules

Troubleshooting MIBs

Related Documentation

Hardware Documents

Software Documentation

Cisco IOS Documentation

Notices

OpenSSL/Open SSL Project

License Issues

Obtaining Documentation and Submitting a Service Request


Release Notes for the Cisco Catalyst 4948E-F Ethernet Switch on Release 12.2(54)WO


Current Release
12.2(54)WO—Nov 29, 2010

These release notes describe the features, modifications, and caveats for Cisco IOS software on the Cisco Catalyst® 4948E-F Ethernet Switch.


Note Cisco IOS Release 12.2(54)WO is a rebuild of 12.2(54)SG, adding only hardware support for the Cisco Catalyst 4948E-F Ethernet Switch, which is a member of the Catalyst 4948E family of switches. This release is only supported on the Cisco Catalyst 4948E-F.


The Cisco Catalyst® 4948E and 4948E-F Ethernet Switches are the first Cisco Catalyst E-Series data switches built from the start to deliver class-leading full-featured server-access switching. Both switches offers forty-eight 10/100/1000-Gbps RJ45 downlink ports and four 1/10 Gigabit Ethernet uplink ports and are designed to simplify data center architecture and operations by offering enterprise grade hardware and software in a one rack unit (1 RU) form factor optimized for full-featured top-of-rack (ToR) data center deployments.

The Catalyst 4948E and 4948E-F share the same internal hardware and software. The Catalyst 4948E draws cold air into the port side and exhaust hot air at the power supply side. The Catalyst 4948E-F draws cold air at the power supply side and exhaust hot air at the port side. This is the only difference between the 4948E and 4948E-F.

The Cisco Catalyst 4948E family builds on the technology of the Cisco Catalyst 4948 Switches, the most deployed ToR switch in the industry, with more than 10 million ports deployed worldwide.

Characteristics of the Cisco Catalyst E-Series include:

Forty-eight 10/100/1000-Gbps RJ45 downlink ports and four 1/10 Gigabit Ethernet uplink ports

Doubled uplink bandwidth relative to the Catalyst 4948 switch

True front-to-back and back-to-front airflow with no side or top venting, reducing data center operating costs by providing strict hot-aisle and cold-aisle isolation

The Catalyst 4948E directs air from the port side to the power supply side of the chassis. The Catalyst 4948E-F directs air from the power supply side to the port side of the chassis.

Very high reliability and serviceability through optional internal AC and DC 1+1 hot-swappable power and hot-swappable fan tray with redundant fans

Support for Cisco IOS Software Release 12.2(54)WO, the default image, follows the standard Cisco Systems® support policy, available at
http://www.cisco.com/en/US/products/products_end-of-life_policy.html

For more information about the Cisco Catalyst 4948E Ethernet Switch, visit:
http://www.cisco.com/go/cat4900/docs.

Contents

This publication consists of these sections:

Cisco IOS Software Packaging for the Cisco Catalyst 4948E-F Ethernet Switch

System Requirements

Minimum and Recommended ROMMON Release

Limitations and Restrictions

Caveats

Troubleshooting

Related Documentation

Notices

Obtaining Documentation and Submitting a Service Request

Cisco IOS Software Packaging for the
Cisco Catalyst 4948E-F Ethernet Switch

The Cisco Catalyst 4948E supports three levels of Cisco IOS Software, summarized in Table 1. The basic level is LAN Base, developed for deployments that require data center-grade hardware along with Layer 2 switching but not advanced features such as routing and Cisco IOS EEM. The next level of software is IP Base; most customers will deploy this level of software because it offers many of the Cisco value-added features that provide operational consistency and an easy-to-manage environment. The top level of software is Enterprise Services. Enterprise Services adds support for advanced routing protocols such as Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), Intermediate System to Intermediate System (IS-IS), and Enhanced Interior Gateway Routing Protocol (EIGRP).


Note The default image for WS-C4948E-F is LAN Base.


The following table lists the software configuration options.

Table 1 LAN Base/IP Base Image Support

Feature
LAN Base
IP Base
Enterprise Services

10G Uplink Use

Yes

Yes

Yes

802.1p prioritization

Yes

Yes

Yes

802.1p/802.1q

Yes

Yes

Yes

802.1w/802.1s

Yes

Yes

Yes

802.1X (w/ Guest VLAN and VLAN Assignment)

Yes

Yes

Yes

802.1X and MAB with ACL assignment

Yes

Yes

Yes

802.1X (Auth-Fail VLAN, Critical Auth, Accounting)

Yes

Yes

Yes

802.1X Wake on LAN

Yes

Yes

Yes

802.1X Web-Auth

Yes

Yes

Yes

802.1X with Multiple authenticated, multi-host

Yes

Yes

Yes

802.1X w/ MDA

Yes

Yes

Yes

802.1X w/ Open Access

Yes

Yes

Yes

802.3ad LACP

Yes

Yes

Yes

802.3x - Flow Control

Yes

Yes

Yes

ACL Logging

Yes

Yes

Yes

All Mibs

Yes

Yes

Yes

Auto QoS

Yes

Yes

Yes

Auto SmartPort

Yes

Yes

Yes

Auto-MDIX

Yes

Yes

Yes

Auto-Voice VLAN (part of Auto QoS)

No support

Yes

Yes

BOOTP

Yes

Yes

Yes

Bootup GOLD

No support

Yes

Yes

Broadcast Suppression

Yes

Yes

Yes

CDP/CDPv2

Yes

Yes

Yes

Community PVLAN support

No support

Yes

Yes

Config File

Yes

Yes

Yes

Console Access

Yes

Yes

Yes

Control Plane Policing

Yes

Yes

Yes

Copy Command

Yes

Yes

Yes

CoS to DSCP Map

Yes

Yes

Yes

Debug Commands

Yes

Yes

Yes

Device Management

Yes

Yes

Yes

DHCP Server

Yes

Yes

Yes

DHCP Snooping

Yes

Yes

Yes

Diagnostics Tools

Yes

Yes

Yes

Downloading Software

Yes

Yes

Yes

DSCP to CoS Map

Yes

Yes

Yes

DSCP to egress queue mapping

Yes

Yes

Yes

Dynamic ARP inspection

Yes

Yes

Yes

EEM and EOT integration

Yes

No

Yes

EIGRP Stub

No support

Yes

Yes

EnergyWise 2.0

Yes

Yes

Yes

Event Log

Yes

Yes

Yes

Factory Default Settings

Yes

Yes

Yes

File Management

Yes

Yes

Yes

Flex Link

Yes

Yes

Yes

GLBP

No support

Yes

Yes

HSRP v1

No support

Yes

Yes

HSRP v2 IPV41

No support

Yes

Yes

HSRP v2 IPV62

No support

No

Yes

ID 4.0 Voice Vlan assignment

Yes

Yes

Yes

ID4.1 Filter ID and per use ACL

Yes

Yes

Yes

IGMP

Yes

Yes

Yes

IGMP Snooping

Yes

Yes

Yes

Ingress Policing

Yes

Yes

Yes

Interface Access (Telnet, Console/Serial, Web)

Yes

Yes

Yes

IP Source Guard

Yes

Yes

Yes

IP Multicast

No support

Yes

Yes

IPV6 reformation

NA

Yes

Yes

IPV6 MLD snooping V1 and V2

Future

Yes

Yes

IPV6 Router Advertisement (RA) Guard

Yes

Yes

Yes

ISL Trunk

Yes

Yes

Yes

ISSU

No support

Yes

Yes

Jumbo Frames

Yes

Yes

Yes

Layer 2 Debug

Yes

Yes

Yes

Layer 2 PT and QinQ

No support

Yes

Yes

Layer 2 Traceroute

Yes

Yes

Yes

Link State Tracking

Yes

Yes

Yes

LLDP/LLDP-MED

Yes

Yes

Yes

LLDP enhancements (PoE+Layer 2 COS)

Yes

No

Yes

Local Web Auth

Yes

Yes

Yes

MAB (MAC Authentication Bypass)

Yes

Yes

Yes

MAC Address Filtering

Yes

Yes

Yes

MAC Based Access List

Yes

Yes

Yes

Management IPV6 port

Yes

Yes

Yes

MLD Snooping

Yes

Yes

Yes

Multicast Filtering

Yes

Yes

Yes

Multihop SXP (CTS)

No support

Yes

Yes

Network Edge Authentication Topology (NEAT)

Yes

No

Yes

No. of QoS Filters

No. of Security ACE

Yes (4K entries)

Yes

Yes

OSPF for Routed Access3

No support

Yes

Yes

PAgP

Yes

Yes

Yes

Passwords
Password clear protection

Yes

Yes

Yes

PIM SM/DM

No support

Yes

Yes

Port Monitoring (interface Stats)

Yes

Yes

Yes

Port Security

Yes

Yes; only 1024 MACs

Yes

Post Status

Yes

Yes

Yes

PVST+

Yes

Yes

Yes

Q-in-Q

No support

Yes

Yes

RACL (DSCP based)

Yes

Yes

Yes

RADIUS/TACACS+ (AAA)

Yes

Yes

Yes

RMON

Yes

Yes

Yes

Routing - RIP, Static

Yes

Yes

Yes

RPR

Yes

Yes

Yes

RPVST+

Yes

Yes

Yes

RSPAN

Yes

Yes

Yes

Service Advertisement Framework (SAF)

Yes

Yes

Yes

Smart Call Home

No support

Yes

Yes

SmartPorts (Role based MACRO)

Yes

Yes

Yes

SNMP (including SNMv3)

Yes

Yes

Yes

Source port Filtering (Private VLAN)

Yes

Yes

Yes

SPAN (# of sessions) - Port Mirroring

Yes (2 sessions)

Yes (8 bidirectional sessions)

Yes

SSHv2/Secure Copy, FTP, SSL, Syslog, Sys Information

Yes

Yes

Yes

Storm Control

Yes

Yes

Yes

TDR

No support

Yes

Yes

Time Protocols (SNTP, TimeP)

Yes

Yes

Yes

Time-based ACL

Yes

Yes

Yes

Traffic Mirroring (SPAN)

Yes

Yes

Yes

Trusted Boundary (LLDP & CDP Based)

Yes

Yes

Yes

UDLD

Yes

Yes

Yes

VACL and PACL

Yes

Yes

Yes

VLAN Mapping (VLAN Translation)

Yes

Yes

Yes

Voice VLAN

Yes

Yes

Yes

VRRP

No support

Yes

Yes

VTP

Yes

Yes

Yes

WCCP

No support

Yes

Yes

XML-PI

Yes

Yes

Yes

1 Supported on all supervisor engines.

2 Supported only for Catalyst 4900M and Supervisor Engines 6-E/6L-E.

3 Supported on WS-X45-SUP6-E and WS-X45-SUP6L-E

Orderable Product Numbers:

S49ELB-12254WO(=)—Cisco IOS Software for Cisco Catalyst 4948E-F Series Switches (LAN Base image)

S49ELBK9-12254WO(=)—Cisco IOS Software for Cisco Catalyst 4948E-F Series Switches (LAN Base image with Triple Data Encryption)

S49EIPB-12254WO(=)—Cisco IOS Software for Cisco Catalyst 4948E-F Series Switches (IP Base image)

S49EIPBK9-12254WO(=)— Cisco IOS Software for Cisco Catalyst 4948E-F Series Switches (IP Base image with Triple Data Encryption)

S49EES-12254WO(=)—Cisco IOS Software for Cisco Catalyst 4948E-F Series Switches (Enterprise Services image with BGP support)

S49EESK9-12254WO—Cisco IOS Software for Cisco Catalyst 4948E-F Series Switches (Enterprise Services image with Triple Data Encryption) and BGP support)

WS-C4900-SW-LIC—Catalyst 4948E-F IP Base Upgrade License for LAN Base IOS

Support

Support for Cisco IOS Software Release 12.2(54)WO follows the standard Cisco Systems® support policy, available at
http://www.cisco.com/en/US/products/products_end-of-life_policy.html

System Requirements

This section describes the system requirements:

Supported Hardware

Supported Features

Supported Hardware

The following tables lists the hardware supported on the Cisco Catalyst 4948E-F Ethernet Switch.

Table 2 Supported Hardware 

Product Number (append with "=" for spares)
Product Description
Switch Chassis
WS-C4948E-F
Cat 4948E-F, opt sw, 48-Port 10/100/1000 + 4 SFP/SFP+, no p/s, Fr Ext
WS-C4948E-F-S
Cat 4948E-F, IPB, 48-Port 10/100/1000+ 4 SFP/SFP+, AC p/s, Fr Ext
WS-C4948E-F-E
Cat 4948E-F, ES, 48-Port 10/100/1000+ 4 SFP/SFP+, AC p/s, Fr Ext
WS-C4948E-BDL
Green Bundle 10x WS-C4948E-F
Power Module
PWR-C49E-300AC-F=
Cat 4948E-F 300W AC Power Supply Front exhaust
PWR-C49E-300AC-F/2
Cat 4948E-F 300W AC Power Supply Front exhaust redundant
Small Form-Factor Pluggable Modules.

GLC-BX-D

1000BASE-BX10-D small form-factor pluggable module
For DOM support, see Table 4.

GLC-BX-U

1000BASE-BX10-U small form-factor pluggable module
For DOM support, see Table 4.bv

GLC-SX-MM

1000BASE-SX small form-factor pluggable module

GLC-LH-SM

1000BASE-LX/LH small form-factor pluggable module

GLC-ZX-SM

1000BASE-ZX small form-factor pluggable module

GLC-T

1000BASE-T small form-factor pluggable module

CWDM-SFP-xxxx

CWDM small form-factor pluggable module (See Table 3 for a list of supported wavelengths.) For DOM support, see Table 4.

SFP+ Modules

SFP-10G-SR

Cisco 10GBASE-SR SFP+ Module for MMF

SFP-10G-LR

Cisco 10GBASE-LR SFP+ Module for SMF

SFP-10G-LRM

Cisco 10GBASE-LRM SFP+ Module for MMF

SFP-H10GB-CU1M

10GBASE-CU SFP+ Cable 1 Meter

SFP-H10GB-CU3M

10GBASE-CU SFP+ Cable 3 Meter

SFP-H10GB-CU5M

10GBASE-CU SFP+ Cable 5 Meter

Other Modules
WS-X4994
Blank PS Cover
WS-X4994=
Blank PS Cover Spare
WS-X4993-F=
Catalyst 4948E-F spare fan tray front exhaust, Spare
Green Bundles
WS-C4948E-F-BDL
Green Bundle 10x WS-C4948E-F
WS-C4948E-F-BDL-1
Green Bundle 10x WS-C4948E-F

Table 3 briefly describes the supported wavelengths in the Catalyst 4948E-F series switches.

Table 3 CWDM SFP Supported Wavelengths

Product Number (append with "=" for spares)
Product Description
 

CWDM-SFP -1470

Longwave 1470 nm laser single-mode

CWDM- SFP -1490

Longwave 1490 nm laser single-mode

CWDM-SFP -1510

Longwave 1510 nm laser single-mode

CWDM-SFP -1530

Longwave 1530 nm laser single-mode

CWDM-SFP -1550

Longwave 1550 nm laser single-mode

CWDM-SFP -1570

Longwave 1570 nm laser single-mode

CWDM-SFP -1590

Longwave 1590 nm laser single-mode

CWDM-SFP -1610

Longwave 1610 nm laser single-mode


Table 4 DOM Support on the Catalyst 4500 Series Switch

Transceiver Module
Support in Software Since...

DWDM-X2-xx

12.2(50)SG

GLC-BX-D

12.2(20)EWA

GLC-BX-U

12.2(20)EWA

DWDM-GBIC-xx

12.1(19)EW

CWDM- SFP-xx

12.2(20)EWA


The following tables lists the hardware supported on the Catalyst 4948E-F series switch.

Supported Features

Table 5 lists the Cisco IOS software features for the Cisco Catalyst 4948E-F Ethernet Switch.

Table 5 Cisco IOS Software Feature Set for the Cisco Catalyst 4948E-F Ethernet Switch 

Layer 2 Switching Features

Storm control

Storm Control: Per-Port Multicast Suppression

Multicast storm control

IP Source Guard

IP Source Guard for Static Hosts

PVRST+

Layer 2 transparent bridging1

Layer 2 MAC2 learning, aging, and switching by software

Unicast MAC address filtering

VMPS3 Client

Layer 2 hardware forwarding up to 102 Mpps

Layer 2 Control Policing

Layer 2 switch ports and VLAN trunks

Spanning-Tree Protocol (IEEE 802.1D) per VLAN

802.1s and 802.1w

Layer 2 traceroute

Unidirectional Ethernet port

Per-VLAN spanning tree (PVST) and PVST+

Spanning-tree root guard

Spanning-tree Loop guard and PortFast BPDU Filtering

Support for 9216 byte frames

Port security

Port security on Voice VLAN

Port security MAC Aging

Trunk Port Security

Unicast MAC Filtering

802.1X Multiple Domain Authentication and Multiple Authorization

802.1X with ACL Assignment and Redirect URLs

802.1X with per-user ACL and Filter-ID ACL

RADIUS-Provided Session Timeouts

RADIUS CoA

MAC Move and Replace

802.1X with Guest VLANs

802.1X with MAC Authentication Bypass

802.1X with Web-Based Authentication

802.1X with Inaccessible Authentication Bypass

802.1X with Unidirectional Controlled Port

802.1X with VLAN User Distribution

802.1X with Authentication Failed VLAN Assignment

802.1X with Voice VLAN Ports

802.1X with VLAN Assignment

802.1X with Fallback Authentication

802.1X with Periodic Reauthentication

802.1X with Multiple Hosts

802.1X Supplicant and Authenticator Switches with Network Edge Access Topology

802.1X with Port Security

Private VLANs

Private VLAN DHCP snooping

Private VLAN trunks

IEEE 802.1Q-based VLAN encapsulation

Multiple VLAN access port

VLAN Trunking Protocol (VTP) and VTP domains

VTP v3

Support for 4096 VLANs per switch

Unidirectional link detection (UDLD) and aggressive UDLD

Sub-second UDLD (Fast UDLD)

SNMP V3 support for Bridge-MIB with VLAN indexing

Ethernet CFM

Ethernet OAM Protocol

Supported Protocols

DTP4

RIPv15 and RIPv2, Static Routing

EIGRP6

EIGRP Stub Routing

EIGRP Service Advertisement Framework7

OSPF8

BGP49

BGP route-map Continue

BGP Neighbor Policy

MBGP10

MSDP11

ICMP12 Router Discovery Protocol

Static routes

Classless Interdomain Routing (CIDR)

DVMRP13

NTP14

STP - Portfast BPDU Guard

STP- BPDU Filtering

STP - Root Guard

SCP15

Resilient Ethernet Protocol (REP)

EtherChannel Features

Cisco EtherChannel technology - 10/100/1000 Mbps, 10 Gbps

Load balancing for routed traffic, based on source and destination IP addresses

Load sharing for bridged traffic based on MAC addresses

IEEE 802.1Q on all EtherChannels

Bundling of up to eight Ethernet ports

Trunk Port Security over EtherChannel

Link State Tracking

Additional Protocols and Features

Secure Copy Protocol (SCP)

Link Layer Discovery Protocol (LLDP)

Link Layer Discovery Protocol Media Endpoint Discovery (LLDP-MED)

PoEP via LLDP

DSCP/CoS via LLDP

Routed Jumbo Frame support

SPAN CPU port mirroring

SPAN packet-type filtering

SPAN destination in-packets option

SPAN ACL filtering

Enhanced VLAN statistics

Secondary addressing

Bootstrap protocol (BOOTP)

Authentication, authorization, and accounting using TACACS+ and RADIUS protocol

Cisco Discovery Protocol (CDP)

CDP 2nd Port Status TLV

FlexLink and MAC Address-Table Move Update

Network Mobility Services Protocol

Sticky port security

Voice VLAN Sticky Port Security

Cisco Group Management Protocol (CGMP) server support

HSRP16 over Ethernet, EtherChannels - 10/100/1000Mbps, 10 Gbps

GLBP

VRRP

IGMP17 snooping version1, version 2, and version 3 (Full Support)

IGMP filtering

IGMP Querier

Multicast VRF-lite

VRF-aware IP services

VRF-aware TACACS+

Configurable IGMP Leave Timer

Multicast Source Discovery Protocol (MSDP)

Smartports I custom macros

Smartports II default macros

Smartports III global macros

AutoSmart Port macro

Port Aggregation Protocol (PagP)

802.3ad LACP

SSH version 1 and version 218

show interface capabilities command

Enhanced SNMP MIB support

SNMP19 version 1, version 2, and version 3

SNMP version 3 (with encryption)

DHCP server and relay-agent

DHCP Snooping Statistics and SYSLOG

DHCP client autoconfiguration

DHCP Option 82 data Insertion

DHCP Option 82 Pass Through

DHCP Relay Agent for IPv6

DHCP Option 82 - Configurable Remote ID and Circuit ID

Port flood blocking

Router standard and extended ACLs 20 on all ports with no performance penalty

Downloadable ACL

VLAN ACL

PACL21

VACL

RACL

Unicast RPF

Local Proxy ARP

Dynamic ARP Inspection on PVLANs

Dynamic ARP Inspection

ARP QoS

QoS for IPv6

MQC

Ingress/Egress Policing

Ingress Rate Limiting

Egress Bandwidth Limiting/port shaping

Per VLAN Policy & Per Port Policer

802.1p Priority

Strict Priority Scheduling

Ingress/Egress Strict Priority Queuing (Expedite)

Shaped Round Robin (SRR)

Egress Shaped Queues

Ingress/egress Shared Queues

DSCP Mapping

DSCP Filtering

AutoQoS - VoIP

PBR22

Auto QoS 1.5

Trust Boundary Configuration

Dynamic Buffer Limiting (DBL)

Per-VLAN Control Traffic Intercept

Table Map Based Classification

Interface Index Persistence

UDI - Unique Device Identifier

Per-port QoS23 rate-limiting and shaping

Per-port Per-VLAN QoS

Energy Wise 2.0

Two-Rate Three-Color Policing

Dynamic Multi-Protocol Ternary Content Addressable Memory

SmartPort macros

802.1s standards compliance

Flexible Authentication Sequencing

Multi-Authentication

Open Authentication

Web Authentication

Local Web Authentication (EPM syslog and Common session ID)

PPPoE Intermediate Agent

Identity ACL Policy Enforcement24

IPv6 routing - unicast routing "RIPng"

IPv6 Neighbor Discovery Throttling

IPv6 MLDv1 & v2 SNooping

IPv6 Host support (- IPv6 support: Addressing; IPv6: Option processing, Fragmentation, ICMPv6,

TCP/UDP over IPv6; Applications: Ping/Traceroute/VTY/SSH/TFTP, SNMP for IPv6 objects)

IPv6 ACLs

IPv6 Management Services (CDP over IPv6, SSHv2 over IPv6)

IPv6: MLDv1/v2

IPv6:CEFv6

IPv6:MLD Snooping

IPv6: PACL

IPv6: RA Guard

IPv6 Interface Statistics

Non-stop Forwarding Awareness

Non-stop Forwarding Awareness for EIGRP-stub in IP base for all supervisor engines

BGP MIB

OSPF Fast Convergence25

AutoRP

Service-Aware Resource Allocation

FAT File System

EEM 3.226

VSS client with PagP+

Ethernet Management Port

Enhanced Object Tracking subfeatures:

HSRP with EOT

VRRP with EOT

GLBP with EOT

IP SLA with EOT

Reliable Backup Static Routing with EOT

ANCP Client

Bidirectional PIM

OSPF and EIGRP Fast Convergence

Inactivity Timer

boot config command

Crashdump enhancement

Unicast MAC filtering

DHCPv6 Ethernet Remote ID option

DHCPv6 Relay - Persistent Interface ID option DHCPv6 Relay Agent notification for Prefix Delegation

PIM SSM Mapping

VRF lite NSF support with routing protocols OSPF/EIGRP/BG

Layer 2 Tunneling Protocol

802.1Q Tunneling

VLAN Mapping (VLAN Translation)

Online Diagnostics

PIM Accept Register - Rogue Multicast Server Protection27

Configuration Rollback

IP Multicast Load Splitting (Equal Cost Multipath (ECMP) using S, G and Next-hop)

OSPF for Routed Access

Archiving crashfiles

Cisco Network Assistant (CNA)

Per-VLAN Learning

IPSG for Static Hosts

XML Programmatic Interface

1 Hardware-based transparent bridging within a VLAN

2 MAC = Media Access Control

3 VMPS = VLAN Management Policy Server

4 DTP = Dynamic Trunking Protocol

5 RIP = Routing Information Protocol

6 EIGRP = Enhanced Interior Gateway Routing Protocol

7 Refer to the URL:http://www.cisco.com/en/US/docs/ios/saf/configuration/guide/saf_cg.html

8 OSPF = Open Shortest Path First

9 BGP4 = Border Gateway Protocol 4

10 MBGP = Multicast Border Gateway Protocol

11 MSDP = Multicast Source Discovery Protocol

12 ICMP = Internet Control Message Protocol

13 DVMRP = Distance Vector Multicast Routing Protocol

14 NTP = Network Time Protocol

15 SCP = Secure Copy Protocol

16 HSRP = Hot Standby Router Protocol

17 IGMP = Internet Group Management Protocol

18 SSH = Secure Shell Protocol

19 SNMP = Simple Network Management Protocol

20 ACLs = Access Control Lists

21 PACL = Port Access Control List

22 Policy-based Routing

23 QoS = Quality of Service

24 filter-ID and per-user ACL

25 The Catalyst 4500 series switch supports Fast Hellos, ISPF, and LSA Throttling.

26 EEM = Embedded Event Manager: Refer to the URL: http://www.cisco.com/en/US/docs/ios/netmgmt/configuration/guide/nm_eem_3.2.html

27 The route-map keyword is not supported.


Minimum and Recommended ROMMON Release

Table 6 Minimum and Recommended ROMMON Release for Catalyst 4948E-F

Minimum ROMMON Release
Recommended ROMMON
Release

12.2(44r)SG9

12.2(44r)SG9


Limitations and Restrictions

Following limitations and restrictions apply to the Cisco Catalyst 4948E-F Ethernet Switch:

IP classful routing is not supported; do not use the no ip classless command; it will have no effect, as only classless routing is supported. The command ip classless is not supported as classless routing is enabled by default.

A Layer 2 LACP channel cannot be configured with the spanning tree PortFast feature.

Netbooting using a boot loader image is not supported. See the "Troubleshooting" section for details on alternatives.

An unsupported default CLI for mobile IP is displayed in the HSRP configuration. Although this CLI will not harm your system, you might want to remove it to avoid confusion.

Workaround: Display the configuration with the show standby command, then remove the CLI. Here is sample output of the show standby GigabitEthernet1/1 command:

switch(config)# interface g1/1
switch(config)# no standby 0 name (0 is hsrp group number)
 
   

For HSRP "preempt delay" to function consistently, you must use the standby delay minimum command. Be sure to set the delay to more than 1 hello interval, thereby ensuring that a hello is received before HSRP leaves the initiate state.

Use the standby delay reload option if the router is rebooting after reloading the image.

You can run only .1q-in-.1q packet pass-through with Catalyst 4948E-F switch.

For PVST and Catalyst 4948E-F switch VLANs, Cisco IOS Release 12.2(54)WO supports a maximum of 3000 spanning tree port instances. If you want to use more than this number of instances, you should use MST rather than PVST.

Because the Catalyst 4948E-F switch supports the FAT filesystem, the following restrictions apply:

The verify and squeeze commands are not supported.

The rename command is supported in FAT file system.

For the Catalyst 4948E-F switch, the rename command has been added for bootflash and slot0. For all other supervisor engines, the rename command is supported for nvram devices only.

the fsck command is supported for slot0 device. It is not supported in the file systems on supervisor engines other than 6-E.

In the FAT file system, the IOS format bootflash: command erases user files only. It does not erase system configuration.

The FAT file system supports a maximum of 63 characters for file/directory name. The maximum for path length is 127 characters.

The FAT file system does not support the following characters in file/directory names:{}#%^ and space characters.

The FAT file system honors the Microsoft Windows file attribute of "read-only" and "read-write", but it does not support the Windows file "hidden" attribute.

If an original packet is dropped due to transmit queue shaping and/or sharing configurations, a SPAN packet copy can still be transmitted on the SPAN port.

The Cisco IOS Release 12.2(54)WO releases supports a maximum of 32[,768 IGMP snooping group entries.

Use the no ip unreachables command on all interfaces with ACLs configured for performance reasons.

The threshold for the Dynamic Arp Inspection err-disable function is set to 15 ARP packets per second per interface. You should adjust this threshold depending on the network configuration. The CPU should not receive DHCP packets at a sustained rate greater than 1000 pps.

If you first configure an IP address or IPv6 address on a Layer 3 port, then change the Layer 3 port to a Layer 2 port with the switchport command, and finally change it back to a Layer 3 port, the original IP/IPv6 address will be lost.

If a Catalyst 4948E-F switch requests information from the Cisco Secure Access Control Server (ACS) and the message exchange times out because the server does not respond, a message similar to this appears:

00:02:57: %RADIUS-4-RADIUS_DEAD: RADIUS server 172.20.246.206:1645,1646 is not 
responding.
 
   

If this message appears, check that there is network connectivity between the switch and the ACS. You should also check that the switch has been properly configured as an AAA client on the ACS.

For IP Port Security (IPSG) for static hosts, the following apply:

As IPSG learns the static hosts on each interface, the switch CPU may hit 100 per cent if there are a large number of hosts to learn. The CPU usage will drop once the hosts are learned.

IPSG violations for static hosts are printed as they occur. If multiple violations occur simultaneously on different interfaces, the CLI displays the last violation. For example, if IPSG is configured for 10 ports and violations exist on ports 3,6 and 9, the violation messages are printed only for port 9.

Inactive host bindings will appear in the device tracking table when either a VLAN is associated with another port or a port is removed from a VLAN. So, as hosts are moved across subnets, the hosts are displayed in the device tracking table as INACTIVE.

Autostate SVI does not work on EtherChannel.

When ipv6 is enabled on an interface via any CLI, it is possible to see the following message:

% Hardware MTU table exhausted
 
   

In such a scenario, the ipv6 MTU value programmed in hardware will be different from the ipv6 interface MTU value. This will happen if there is no room in the hw MTU table to store additional values.

You must free up some space in the table by unconfiguring some unused MTU values and subsequently disable/re-enable ipv6 on the interface or reapply the MTU configuration.

To stop IPSG with Static Hosts on an interface, use the following commands in interface configuration submode:

Switch(config-if)# no ip verify source
Switch(config-if)# no ip device tracking max"
 
   

To enable IPSG with Static Hosts on a port, issue the following commands:

Switch(config)# ip device tracking ****enable IP device tracking globally
Switch(config)# ip device tracking max <n> ***set an IP device tracking maximum on int
Switch(config-if)# ip verify source tracking [port-security] ****activate IPSG on port

Caution If you only configure the ip verify source tracking [port-security] interface configuration command on a port without enabling IP device tracking globally or setting an IP device tracking maximum on that interface, IPSG with Static Hosts will reject all the IP traffic from that interface.


Note The issue above also applies to IPSG with Static Hosts on a PVLAN Host port.


IPv6 ACL is not supported on a Catalyst 4948E-F switchport. IPv6 packets cannot be filtered on switchports using any of the known methods (PACL, VACL, or MACLs).

Class-map match statements using match ip prec | dscp match only IPv4 packets whereas matches performed with match prec | dscp match both IPv4 and IPv6 packets.

IPv6 QoS hardware switching is disabled if the policy-map contains IPv6 ACL and match cos in the same class-map with the ipv6 access-list has any mask range between /81 and /127. It results in forwarding packets to software which efficiently disable the QoS.

Management port does not support non-VRF aware features.

When you enter the permit any any ? command you will observe the octal option, which is unsupported in Cisco IOS Release 12.2(54)WO.

A Span destination of fa1 is not supported.

The "keepalive" CLI is not supported in interface mode on the switch, although it will appear in the running configuration. This behavior has no impact on functionality.

TDR is only supported on interfaces Gi1/1 through Gi1/48, at 1000BaseT under open or shorted cable conditions. TDR length resolution is +/- 10 m. If the cable is less than 10 m or if the cable is properly terminated, the TDR result displays "0" m. If the interface speed is not 1000BaseT, an "unsupported" result status displays. TDR results will be unreliable for cables extended with the use of jack panels or patch panels.

The Catalyst 4948E-F Ethernet Switch upstream ports support flow control auto negotiation in 1G mode only, and flow control is forced in 10G mode. If the interface is configured to auto-negotiate the flow control, and the interface is operating in 10G mode, the system forces flow control to ON and does not auto-negotiate.

The following guidelines apply to Fast UDLD:

Fast UDLD is disabled by default.

Configure fast UDLD only on point-to-point links between network devices that support fast UDLD.

You can configure fast UDLD in either normal or aggressive mode.

Do not enter the link debounce command on fast UDLD ports.

Configure fast UDLD on at least two links between each connected network device. This reduces the likelihood of fast UDLD incorrectly error disabling a link due to false positives.

Fast UDLD does not report a unidirectional link if the same error occurs simultaneously on more than one link to the same neighbor device.

The Catalyst 4948E-F Ethernet switch supports fast UDLD on a maximum of 32 ports.

Caveats

Caveats describe unexpected behavior in Cisco IOS releases. Caveats listed as open in a prior release are carried forward to the next release as either open or resolved.


Note For the latest information on PSIRTS, refer to the Security Advisories on CCO at the following URL:
http://www.cisco.com/en/US/products/products_security_advisories_listing.html


Open Caveats in Cisco IOS Release 12.2(54)WO

This section lists the open caveats in Cisco IOS Release 12.2(54)WO:

If a class-map is configured with exceed-action drop, re-configuring the same class-map with exceed-action transmit causes class-map configurations to conflict for the same class-map.

Workaround: If you plan to change a class-map action, such as exceed-action, you meed to remove the class-map with the no class c1 command under policy-map submode. Then, apply the new class-map with the updated changes.

CSCsk70826)

If burst is not explicitly configured for a single rate policer, the show policy-map command displays an incorrect burst value.

Workaround: Enter the show policy-map interface command. (CSCsi71036)

When you enter the show policy-map vlan vlan command, unconditional marking actions that are configured on the VLAN are not shown.

Workaround: None. However, if you enter the show policy-map name, the unconditional marking actions are displayed. (CSCsi94144)

IGMP snooping entries are active even after disabling IGMP snooping globally and per VLAN.

Workarounds: Disable IGMP snooping on all the relevant VLANs before disabling it globally.

If an EtherChannel is a member of a flexlink pair, then static MAC addresses configured on the EtherChannel are not moved to the alternate port when the EtherChannel fails (flexlink failure)

Workaround: None. (CSCsq99468)

When a CFM Inward Facing MEP(IFM) is configured on a VLAN that is not allocated on a switch port that is DOWN, the show ethernet cfm maintenance-points local command displays the
IFM CC Status as Inactive. Then, you allocate the VLAN, the CC-status remains Inactive.

You only see this symptom if you did not allocate a VLAN before you configure the IFM, then at a later time allocate the same VLAN.

Workaround: Unconfigure, then reconfigure the IFM on the port.

An IP unnumbered configuration is lost after a reload.

Workarounds: Do one of the following:

After a reload, copy the startup-config to the running-config.

Use a loopback interface as the target of the ip unnumbered command

Change the CLI configuration such that during bootup, the router port is created first.

(CSCsq63051)

VTP databases do not propagate through promiscuous trunk ports. If only promiscuous trunks are configured, users will not see the VLAN updates on the other switches in the VTP domain.

Workaround: For VTP database propagation, configure ISL/dot1q trunk port. (CSCsu43445)

If VLAN Load Balancing is progressing, and you reconfigure VLAN Load Balancing to reflect different blocking ports, manual preemption does not occur.

Workaround: To reconfigure VLAN Load Balancing with a different configuration, do the following:

a. Reconfigure the VLAN Load Balancing configuration on the desired REP ports.

b. Shut any one REP port in the segment to cause a failure in that segment.

c. No-shut that port to restore normal REP topology with one ALT port.

d. Invoke manual preemption on a primary edge port to obtain VLAN Load Balancing with the new configuration.

(CSCsv69853)

Class-map hit counters do not increment on the egress policy-map when it is attached to the primary VLAN on a PVLAN trunk ports. However, the traffic is properly classified and the actions configured in the policy are applied properly.

Workaround: None. CSCsy72343

If you simultaneously apply a service-policy to a port in the output direction and a service-policy to a vlan-range under that port in the output direction, the class-map hit counters in the output of the
show policy-map interface command are wrong.

Workaround: None.

The queue transmit counters as well as the policing statistics (if any) are correct.

CSCsz20149

When you configure switchport block multicast on a switch running
Cisco IOS Release 12.2(54)WO, Layer 2 multicast is not blocked.

Workaround: None

CSCtb30327

When using dynamic policy installation for a client or host that is authenticated on a secure port, the traffic from the client is not permitted even though the permit ip any any command is specified as the dynamic policy for the client.

This occurs only if the following conditions are satisfied:

Multi-host mode configured on the port with the authentication host-mode multi-host command.

Default ACL (the IP access-list) configured on the interface specifies deny ip any any.

Dynamic policy authorization for the client specifies permit ip any any.

Workaround: None.

CSCsz63739

If time is not specified in the link debounce command, the default value is 100 ms.

Workaround: None.

CSCte51948

High CPU usage results when around 1000 secondary VLANs are mapped to the primary VLAN SVI.

Workaround: None. CPU usage will decrease after some time.

CSCtc30070

When ipv6 nd raguard is configured on an interface, Router Advertisement and Router Redirect packets with destination address FF02::x are dropped as expected. However, the drop counters are not advanced in the output of show ipv6 first-hop counters interface interface command.

Workaround: None. CSCtf69108

On a peer interface, if errdisabled mode flap detection is set to a very small number (such as 2 flaps in 10 sec), a 10GE link flap may cause the peer interface to enter the errdisabled state.

Workarounds: The Cisco switch default link-flap detection value is 5 flaps in 10 seconds. Use the default value or larger numbers. CSCtg07677

Fast UDLD in aggressive mode may incorrectly errdisable a link in the following scenarios:

Fast UDLD peer switch performs SSO.

Fast UDLD peer switch is reloaded.

One or more interfaces on a fast UDLD peer switch are shut down (or the port mode changes from switchport to routed, and vice versa).


Note To reduce the likelihood of this event, connect at least two physical interfaces between fast UDLD peer switches. You must configure the interfaces with the same neighbor fast hello interval.


Workarounds:

Reset the error disabled links with the udld reset command.

Configure error disable recovery with the commands errdisable recovery cause udld and
errdisable recovery interval value (between 30 and 86400 sec).

Manually clear errdisable on the local interface with a shutdown then a no shutdown.

CSCtc99007

After posture validation succeeds, the following benign traceback messages may appear after you unconfigure the global RADIUS and IP device tracking commands:

%SM-4-BADEVENT: Event 'eouAAAAuthor' is invalid for the current state 'eou_abort': 
eou_auth 4.1.0.101   Traceback= 101D9A88 10B76BB0 10B76FE0 10B7A114 10B7A340 1066A678 
106617F8
%SM-4-BADEVENT: Event 'eouAAAAuthor' is invalid for the current state 'eou_abort': 
eou_auth 4.1.0.102   Traceback= 101D9A88 10B76BB0 10B76FE0 10B7A114 10B7A340 1066A678 
106617F8
 
   

This applies to classic or E-series Catalyst 4500 supervisor engines running
Cisco IOS Release 12.2(50)SG

Workaround: None. (CSCsw14005)

Occasionally, when you use MAC ACL-based policers, the output of the show policy-map interface fa6/1 command does not display the packets being matched:

Switch# show policy-map int fa6/1 
   Service-policy output: p1 
     Class-map: c1 (match-all) 
       0 packets		<--------It stays at '0' despite of traffic being received 
       Match: access-group name fnacl21 
       police: Per-interface 
         Conform: 9426560 bytes Exceed: 16573440 bytes 
 
   

Workaround: Verify that the MAC addresses being transmitted through the system are learned.

(CSCef01798)

When you enter the ip http secure-server command (or if the system reads it from the startup configuration), the device searches for a persistent self-signed certificate during boot up.

If such a certificate does not exist and the device's hostname and default_domain are set, then a persistent self-signed certificate is generated.

If such a certificate exists, the FQDN in the certificate is compared with the current device's hostname and default_domain. If either differs from the FQDN in the certificate, the existing persistent self-signed certificate is replaced with a new one with the updated FQDN. Note that the existing keypair is used in the new certificate.

On a switch that supports redundancy, the generation of the self-signed certificate occurs independently on the active and standby supervisor engines, and the certificates differ. After switchover, the HTTP client that holds the old certificate cannot connect to the HTTPS server.

Workaround: Reconnect. (CSCsb11964)

To enable IP CEF (if it is disabled by hardware exhaustion), enter the ip cef distributed command.

Workaround: None. (CSCsc11726)

An IP redirect may not be sent out if the outgoing interface on a Catalyst 4500 series switch is an IP unnumbered port. This situation could occur for these reasons:

A packet requires an IP redirect to an IP unnumbered outgoing port within 3 minutes of bootup.

The administrator enters the shutdown and no shutdown commands on an outgoing interface that has enabled IP unnumbered. The switch receives packets that require redirection; and the destination MAC address is already in ARP table.

Workarounds:

Do not inject packets that require an IP redirect sent out to an IP unnumbered port within 3 minutes of booting the Catalyst 4500 series switch.

Configure the correct default gateway on the host side. CSCse75660

When policing IEEE 802.1Q tagged non-IP traffic and calculating traffic conformance, the policer excludes the four bytes that constitute the 802.1Q tag even when you enter the qos account layer2 encapsulation command.

Workaround: None. CSCsg58526

When hard-coded duplex and speed settings are deleted after an interface shuts down, an "a" is added to the duplex and speed in the output from the show interface status command.

This does not affect performance.

Workaround: Enter the no shutdown command. CSCsg27395

Occassionally, when a transceiver is quickly removed from a port and placed in another port on the same chassis, a duplicate seeprom message appears and the port is unable to handle traffic.

Workaround: Remove the transceiver from the new port and place it in the old port. After the SFP is recognized in the old port, remove it slowly and insert it in the new port. CSCse34693

When you send traffic on a VLAN ID higher than 3000, the convergence timing caused by a failure exceeds 225 ms.

Workaround: None. (CSCsm30320)

An IP unnumbered configuration is lost after a switch reloads.

Workarounds: Do one of the following:

After a reload, copy the startup-config to the running-config.

Use a loopback interface as the target of the ip unnumbered command.

Change the CLI configuration so that during bootup the router port is created first.

CSCsq63051

VTP databases do not propagate through promiscuous trunk ports. If only promiscuous trunks are configured, you will not see the VLAN updates on the other switches in the VTP domain.

Workaround: Configure an ISL or dot1q trunk port. (CSCsu43445)

After posture validation succeeds, the following benign traceback messages may appear after you unconfigure the global RADIUS and IP device tracking commands:

%SM-4-BADEVENT: Event 'eouAAAAuthor' is invalid for the current state 'eou_abort': 
eou_auth 4.1.0.101   Traceback= 101D9A88 10B76BB0 10B76FE0 10B7A114 10B7A340 1066A678 
106617F8
%SM-4-BADEVENT: Event 'eouAAAAuthor' is invalid for the current state 'eou_abort': 
eou_auth 4.1.0.102   Traceback= 101D9A88 10B76BB0 10B76FE0 10B7A114 10B7A340 1066A678 
106617F8
 
   

This applies to classic or E-series Catalyst 4500 supervisor engines running
Cisco IOS Release 12.2(50)SG or earlier.

Workaround: None. (CSCsw14005)

Class-map hit counters do not increment on the egress policy-map when it is attached to the primary VLAN on a PVLAN trunk port. However, the traffic is properly classified and the actions configured in the policy are applied properly.

Workaround: None. CSCsy72343

If you simultaneously apply a service-policy to a port in the output direction and a service-policy to a vlan-range under that port in the output direction, the class-map hit counters in the output of the
show policy-map interface command are wrong.

Workaround: None.

The queue transmit counters as well as the policing statistics (if any) are correct. CSCsz20149

On a wireless control system (WCS), some device information is incorrectly displayed for PCs sitting behind an lldp-med capable phone. Specifically, WCS displays the phone's serial number, model number, and software version in the PC's device information. All other information about the PC is correctly displayed on WCS.

This only happens when the switch is running network mobility service protocol (nmsp). It does not happen if the phone is CDP enabled.

Workaround: Use the VLAN ID or name to differentiate the IP phone and the PC sitting behind the phone on the WCS.

The IP phone is detected on the voice VLAN, and the displayed information of serial number, model number, and software version is correct. However, a PC sitting behind the phone is detected on a data VLAN, and the displayed device information is wrong and should be ignored.

CSCsz34522

When running Cisco IOS Release 12.2(53)SG1, 12.2(50)SG6, or later releases and you configure switchport block multicast on a switch, Layer 2 multicast is not blocked. IPv4 and IPV6 unknown multicast traffic is blocked.

Prior to Cisco IOS Release 12.2(53)SG1 and 12.2(50)SG6, the switchport block multicast command blocks IP Multicast, Layer 2 multicast, and broadcast traffic. (Refer to CSCta61825)

Workaround: None. CSCtb30327

If VLAN load balancing is progressing, and you reconfigure VLAN load balancing to reflect different blocking ports, manual preemption does not occur.

Workaround: Reconfigure VLAN load balancing with a different configuration, by performing the following task:

a. Reconfigure the VLAN load balancing configuration on the desired REP ports.

b. Use the shut command on any one REP port in the segment to cause a failure in that segment.

c. Use the no-shut on the same port to restore normal REP topology with one ALT port.

d. Invoke manual preemption on a primary edge port to obtain VLAN load balancing with the new configuration. CSCsv69853

On a peer interface for Catalyst 4948E Ethernet Switch, if errdisabled mode flap detection is set to a very small number (such as 2 flaps in 10 sec), a 10GE link flap may cause the peer interface to enter the errdisabled state.

Workarounds: The switch default link-flap detection value is 5 flaps in 10 seconds. Use the default value or larger numbers. CSCtg07677

If you disable and re-enable IGMP Snooping on a VLAN, the output of the show mac address command does not display the [term] Switch against the multicast entry. Multicast traffic is not impacted.

Workaround: Enter shut then no shut on the SVI. CSCtg72559

When a connected data device behind a phone disconnects from a port configured for multi-auth host mode, a new session for the device is restarted even though the device is absent.

The CDP TLV generated to indicate that a data device has disconnected is ignored. This is done to avoid disconnecting other connected data clients, if any. (Refer to CSCta47293.)

Workarounds: Enter either of the following commands:

clear authentication session interface

authentication timer inactivity CSCtg83631

When Fallback WebAuth and Multi-host are configured on a port and no PACL exists, permit ip any any is installed in the TCAM and all traffic from the host is allowed to pass.

Workaround: Configure an ACL on the port. CSCte18760

After you have enabled EPM logging and the client is authenticated via MAB or Webauth, the value of AUTHTYPE is DOT1X in EPM syslog messages irrespective of the authentication method.

Similarly, the show epm sessions command always displays the authentication method as DOT1X.

Workaround: To view the authentication method used for a client, enter the
show authentication sessions command. CSCsx42157

With CFM enabled globally as well as on an ingress interface, CFM packets received on the interface are not policed with hardware control plane policing.

Workaround: None. (CSCso93282)

A switch may crash while loading BGP routes if the ip cef accounting non-recursive command is already configured.

Workaround: Disable the ip cef accounting non-recursive command.

(CSCtn68186)

Resolved Caveats in Cisco IOS Release 12.2(54)WO

This section lists the resolved caveats in Cisco IOS Release 12.2(54)WO:

The SFP+ interfaces on Catalyst 4948E Ethernet Switch , Supervisor 7, Supervisor 7-E, and WS-X4712-SFP+E auto-detect the presence of 10 Gigabut or 1 Gigabut-optics and set the speed automatically. However, in Cisco IOS Releases IOS-XE 3.1.0SG, 12.2(54)XO, and 12.2(54)SG, CLI speed nonegotiate does not actually turn off the speed negotiation with the peer. This means that if the peer does not negotiate speed, the interfaces will not link up.

Workaround: Apply auto negotiation on the peer.

Issue resolved in Cisco IOS Release 15.0(2)SG.

Troubleshooting

These sections provide troubleshooting guidelines for the Catalyst 4900M series switch running IOS supervisor engines:

Netbooting from the ROMMON

Troubleshooting at the System Level

Troubleshooting Modules

Troubleshooting MIBs

Netbooting from the ROMMON

Netbooting using a boot loader image is not supported; instead, use the ROMMON TFTP boot.

The ROMMON TFTP boot is very similar to the BOOTLDR TFTP boot, except that:

the BOOTLDR variable should not be set

the TFTP server must be accessible from the Ethernet management port on the supervisor engine.

To boot from ROMMON, perform the following tasks while in ROMMON mode:

a. Ensure that the Ethernet management port is physically connected to the network.

b. Verify that bootloader environment is not set by entering the unset bootldr command.

c. Set IP address of the Ethernet management port on the supervisor engine by entering the following command: set interface fa1 ip_address> <ip_mask

For example, to set the supervisor engine Ethernet port with an IP address 172.16.1.5 and IP mask 255.255.255.0, enter the following command:

rommon 2> set interface fa1 172.16.1.5 255.255.255.0
 
   

d. Set default gateway for the Ethernet management port on the supervisor engine by entering the following command: set ip route default gateway_ip_address. The default gateway should be directly connected to the supervisor engine Ethernet management port subnet.

e. Ping the TFTP server to ensure that there is connectivity to the server from the Ethernet management port on the supervisor engine by entering the following command: ping <tftp_server_ip_address>.

f. Once the ping is successful, boot the image from the TFTP server by entering the following command: boot tftp://tftp_server_ip_address>/<image_path_and_file_name

For example, to boot the image name cat4500-ipbase-mz located on the TFTP server 172.16.1.8, enter the following command:

rommon 3> boot tftp://172.16.1.8/tftpboot/cat4500-ipbase-mz

Troubleshooting at the System Level

This section contains troubleshooting guidelines for system-level problems:

When the system is booting and running power-on diagnostics, do not reset the switch.

Ensure that you do not mix the serial and Ethernet cables. The Ethernet Management port is inoperative. An Ethernet cable plugged into the Ethernet port is active only in ROMMON mode.

Troubleshooting Modules

This section contains troubleshooting guidelines for the Catalyst 4900M series switch:

Whenever you connect an interface that has duplex set to autonegotiate to an end station or another networking device, ensure that the other device is configured for autonegotiation as well. If the other device is not set to autonegotiate, the port set to autonegotiate will remain in half-duplex mode, which can cause a duplex mismatch resulting in packet loss, late collisions, and line errors on the link.

Troubleshooting MIBs

For general information on MIBs, RMON groups, and traps, refer to the Cisco public MIB directory (http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml). For information on the specific MIBs supported by the Catalyst 4900M series switches, refer to the Catalyst 4000 MIB Support List located at ftp://ftp.cisco.com/pub/mibs/supportlists/cat4000/cat4000-supportlist.html.

Related Documentation

Although their Release Notes are unique, the 4 platforms (Catalyst 4500, Catalyst 4900, Catalyst ME 4900, and Catalyst 4900M) use the same Software Configuration Guide, Command Reference Guide, and System Message Guide. Refer to the following home pages for additional information:

Catalyst 4500 Series Switch Documentation Home

http://www.cisco.com/go/cat4500/docs

Catalyst 4900 Series Switch Documentation Home

http://www.cisco.com/go/cat4900/docs

Cisco ME 4900 Series Ethernet Switches Documentation Home

http://www.cisco.com/en/US/products/ps7009/tsd_products_support_series_home.html

Hardware Documents

Installation guides and notes including specifications and relevant safety information are available at the following URLs:

Catalyst 4500 Series Switches Installation Guide

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/installation/guide/78-14409-08/4500inst.html

Catalyst 4500 E-series Switches Installation Guide

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/catalyst4500e/installation/guide/Eseries.html

For information about individual switching modules and supervisors, refer to the Catalyst 4500 Series Module Installation Guide at:

http://www.cisco.com/US/products/hw/switches/ps4324/prod_installation_guides_list.html

Regulatory Compliance and Safety Information for the Catalyst 4500 Series Switches

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/regulatory/compliance/78_13233.html

Installation notes for specific supervisor engines or for accessory hardware are available at:

http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_installation_guides_list.html

Catalyst 4900 and 4900M hardware installation information is available at:

http://www.cisco.com/en/US/products/ps6021/prod_installation_guides_list.html

Cisco ME 4900 Series Ethernet Switches installation information is available at:

http://www.cisco.com/en/US/products/ps7009/prod_installation_guides_list.html

Software Documentation

Software release notes, configuration guides, command references, and system message guides are available at the following URLs:

Catalyst 4500 release notes are available at:

http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_release_notes_list.html

Catalyst 4900 release notes are available at:

http://www.cisco.com/en/US/products/ps6021/prod_release_notes_list.html

Cisco ME4900 4900 Series Ethernet Switch release notes are available at:

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/release/note/OL_11511.html

Software documents for the Catalyst 4500 Classic, Catalyst 4500 E-Series, Catalyst 4900, and
Cisco ME 4900 Series Ethernet Switches are available at the following URLs:

Catalyst 4500 Series Software Configuration Guide

http://www.cisco.com/en/US/products/hw/switches/ps4324/products_installation_and_configuration_guides_list.html

Catalyst 4500 Series Software Command Reference

http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_command_reference_list.html

Catalyst 4500 Series Software System Message Guide

http://www.cisco.com/en/US/products/hw/switches/ps4324/products_system_message_guides_list.html

Cisco IOS Documentation

Platform-independent Cisco IOS documentation may also apply to the Catalyst 4500 and 4900 switches. These documents are available at the following URLs:

Cisco IOS configuration guides, Release 12.x

http://www.cisco.com/en/US/products/ps6350/products_installation_and_configuration_guides_list.html

Cisco IOS command references, Release 12.x

http://www.cisco.com/en/US/products/ps6350/prod_command_reference_list.html

You can also use the Command Lookup Tool at:

http://tools.cisco.com/Support/CLILookup/cltSearchAction.do

Cisco IOS system messages, version 12.x

http://www.cisco.com/en/US/products/ps6350/products_system_message_guides_list.html

You can also use the Error Message Decoder tool at:

http://www.cisco.com/pcgi-bin/Support/Errordecoder/index.cgi

For information about MIBs, refer to:

http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml

Notices

The following notices pertain to this software license.

OpenSSL/Open SSL Project

This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/).

This product includes cryptographic software written by Eric Young (eay@cryptsoft.com).

This product includes software written by Tim Hudson (tjh@cryptsoft.com).

License Issues

The OpenSSL toolkit stays under a dual license, i.e. both the conditions of the OpenSSL License and the original SSLeay license apply to the toolkit. See below for the actual license texts. Actually both licenses are BSD-style Open Source licenses. In case of any license issues related to OpenSSL please contact openssl-core@openssl.org.

OpenSSL License:

Copyright © 1998-2007 The OpenSSL Project. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution.

3. All advertising materials mentioning features or use of this software must display the following acknowledgment: "This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/)".

4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to endorse or promote products derived from this software without prior written permission. For written permission, please contact openssl-core@openssl.org.

5. Products derived from this software may not be called "OpenSSL" nor may "OpenSSL" appear in their names without prior written permission of the OpenSSL Project.

6. Redistributions of any form whatsoever must retain the following acknowledgment:

"This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/)".

THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT "AS IS"' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

This product includes cryptographic software written by Eric Young (eay@cryptsoft.com). This product includes software written by Tim Hudson (tjh@cryptsoft.com).

Original SSLeay License:

Copyright © 1995-1998 Eric Young (eay@cryptsoft.com). All rights reserved.

This package is an SSL implementation written by Eric Young (eay@cryptsoft.com).

The implementation was written so as to conform with Netscapes SSL.

This library is free for commercial and non-commercial use as long as the following conditions are adhered to. The following conditions apply to all code found in this distribution, be it the RC4, RSA, lhash, DES, etc., code; not just the SSL code. The SSL documentation included with this distribution is covered by the same copyright terms except that the holder is Tim Hudson (tjh@cryptsoft.com).

Copyright remains Eric Young's, and as such any Copyright notices in the code are not to be removed. If this package is used in a product, Eric Young should be given attribution as the author of the parts of the library used. This can be in the form of a textual message at program startup or in documentation (online or textual) provided with the package.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

3. All advertising materials mentioning features or use of this software must display the following acknowledgement:

"This product includes cryptographic software written by Eric Young (eay@cryptsoft.com)".

The word `cryptographic' can be left out if the routines from the library being used are not cryptography-related.

4. If you include any Windows specific code (or a derivative thereof) from the apps directory (application code) you must include an acknowledgement: "This product includes software written by Tim Hudson (tjh@cryptsoft.com)".

THIS SOFTWARE IS PROVIDED BY ERIC YOUNG "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The license and distribution terms for any publicly available version or derivative of this code cannot be changed. i.e. this code cannot simply be copied and put under another distribution license [including the GNU Public License].

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the What's New in Cisco Product Documentation as an RSS feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service. Cisco currently supports RSS Version 2.0.