Table of Contents
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Cisco EtherSwitch Service Modules Feature
Guide
This document describes the Cisco EtherSwitch service module only. For information about the Cisco
Note
Ethernet switch network module, see "Connecting Ethernet Switch Network Modules to a Network" at
the following URL:
http://www.cisco.com/en/US/products/hw/modules/ps2797/products_module_installation_guide_chapt
er09186a00800b168c.html
The Cisco EtherSwitch service modules (NME-16ES-1G, NME-16ES-1G-P, NME-X-23ES-1G,
NME-X-23ES-1G-P, NME-XD-48ES-2S-P, and NME-XD-24ES-1S-P) provide Cisco modular access
routers the ability to stack Cisco EtherSwitch service modules as Layer 2 switches using Cisco
StackWise technology. The Cisco EtherSwitch service modules are supported by either the IP base image
(formerly known as standard multilayer image [SMI]) or the IP services image (formerly known as the
enhanced multilayer image [EMI]). The IP base image provides Layer 2+ features, including access
control lists (ACLs), quality of service (QoS), static routing, and the Routing Information Protocol
(RIP). The IP services image provides a richer set of enterprise-class features, including Layer 2+
features and full Layer 3 routing (IP unicast routing, IP multicast routing, and fallback bridging). To
distinguish it from the Layer 2+ static routing and RIP, the IP services image includes protocols such as
the Enhanced Interior Gateway Routing Protocol (EIGRP) and the Open Shortest Path First (OSPF)
Protocol.
Feature History for the Cisco EtherSwitch Service Modules (NME-16ES-1G-P, NME-X-23ES-1G-P,
NME-XD-24ES-1S-P, NME-XD-48ES-2S-P)
Release
12.2(25)EZ (switch software)
12.3(14)T (router software)
Feature History for the Cisco EtherSwitch Service Modules (NME-16ES-1G, NME-X-23ES-1G)
Release
12.2(25)SEC (switch software)
12.3(14)T3 (router software)
Corporate Headquarters:
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
Copyright © 2005 Cisco Systems, Inc. All rights reserved.
Modification
This feature was introduced.
This feature was introduced.
Modification
This feature was introduced.
This feature was introduced.
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Chapters
Table of Contents
Troubleshooting
Related Manuals for Cisco NME-16ES-1G
Summary of Contents for Cisco NME-16ES-1G
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Page 1: Features
Feature History for the Cisco EtherSwitch Service Modules (NME-16ES-1G, NME-X-23ES-1G) Release 12.2(25)SEC (switch software) 12.3(14)T3 (router software) Corporate Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA Copyright © 2005 Cisco Systems, Inc. All rights reserved. Modification This feature was introduced. This feature was introduced. -
Page 2: Table Of Contents
• How to Configure the Cisco EtherSwitch Service Module, page 33 • How to Configure the Cisco EtherSwitch Service Module in a Switch Stack, page 50 • How to Configure a Switch Cluster, page 57 Upgrading the Cisco EtherSwitch Service Module Software, page 63 •... -
Page 3: Hardware Overview
100BASE-TX, and 1000BASE-T Ethernet traffic from other network devices. You can manage the Cisco EtherSwitch service modules as a single switch unit or as a set of switches forming a switching stack that acts as a single entity. The stacking ports on the Cisco StackWise EtherSwitch NME-XD-24ES-1S-P service module are used to connect the switches or other Cisco EtherSwitch service modules in a stack. -
Page 4: Software Features And Benefits
Information About the Cisco EtherSwitch Service Modules NME-XD-48ES-2S-P—Extended double-wide Cisco EtherSwitch service module with • 48 10/100-Mbps PoE ports, and 2 small form-factor pluggable (SFP) Gigabit Ethernet service module ports NME-XD-24ES-1S-P—Extended double-wide Cisco EtherSwitch service module with • 24 10/100-Mbps PoE ports, 1 SFP port, and 2 Cisco StackWise ports For complete information about the Cisco EtherSwitch service modules hardware, see the Cisco Network Modules Hardware Installation Guide at the following URL: http://www.cisco.com/en/US/products/hw/modules/ps2797/products_module_installation_guide_book... - Page 5 Adding, removing, and replacing Cisco EtherSwitch service modules in the stack without – disrupting the operation of the stack. Provisioning a new member for a switch stack with the offline configuration feature. You can – configure the interface configuration for a specific stack member number in advance. The switch stack retains this information across stack reloads whether or not the provisioned Cisco EtherSwitch service module is part of the stack.
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Page 6: Management Options
Cisco EtherSwitch service module console port or by using Telnet from a remote management station. You can manage the switch stack by connecting to the console port of any stack member. For more information about the Cisco EtherSwitch service module CLI, see the Catalyst 3750 Switch Command Reference, Cisco IOS Release 12.2 at the following URL:... -
Page 7: Manageability Features
The newly elected stack master begins accepting Layer 2 traffic in less than 1 second and Layer 3 traffic between 3 to 5 seconds. • Cross-stack EtherChannel for providing redundant links across the switch stack. • UniDirectional Link Detection (UDLD) and aggressive UDLD for detecting and disabling unidirectional links on fiber-optic interfaces caused by incorrect fiber-optic wiring or port faults. - Page 8 VLAN Query Protocol (VQP) for dynamic VLAN membership. • Inter-Switch Link (ISL) and IEEE 802.1Q trunking encapsulation on all ports for network moves, • adds, and changes; management and control of broadcast and multicast traffic; and network security by establishing VLAN groups for high-security users and network resources.
- Page 9 Cisco EtherSwitch Service Modules Feature Guide Voice VLAN for creating subnets for voice traffic from Cisco IP phones. • VLAN 1 minimization for reducing the risk of spanning-tree loops or storms by allowing VLAN 1 • to be disabled on any individual VLAN trunk link. With this feature enabled, no user traffic is sent or received on the trunk.
- Page 10 Automatic QoS (auto-QoS) to simplify the deployment of existing QoS features by classifying • traffic and configuring egress queues (voice over IP only). Cross-stack QoS for configuring QoS features on Cisco EtherSwitch service modules in a switch • stack rather than on an individual Cisco EtherSwitch service module basis.
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Page 11: Monitoring Features
Cisco EtherSwitch Service Modules Feature Guide Egress queues and scheduling • Four egress queues per port. – WTD as the congestion-avoidance mechanism for managing the queue lengths and providing – drop precedences for different traffic classifications. SRR as the scheduling service for specifying the rate at which packets are dequeued to the –... -
Page 12: Cisco Stackwise Concepts
• You can install up to two Cisco EtherSwitch service modules in a Cisco 3845, Cisco 3825, Cisco 2851, or Cisco 2821 router or up to four Cisco EtherSwitch NME-16ES-1G-P service modules in the Cisco 3745 or Cisco 3845 routers. -
Page 13: Switch Stack Membership
• A switch stack is identified in the network by its bridge ID and, if the switch stack is operating as a Layer 3 device, its router MAC address. The bridge ID and router MAC address are determined by the MAC address of the stack master. -
Page 14: Stack Master Election And Re-Election
Information About the Cisco EtherSwitch Service Modules A standalone Cisco EtherSwitch service module or Catalyst 3750 switch is a switch stack with one stack member that also operates as the stack master. You can connect one standalone Cisco EtherSwitch service module to another Cisco EtherSwitch service module or Catalyst 3750 switch to create a switch stack containing two stack members, with one of them being the stack master. -
Page 15: Switch Stack Bridge Id And Router Mac Address
In the events marked by an asterisk (*), the current stack master might be re-elected based on the listed factors. When you power up or reset an entire switch stack, some stack members might not participate in the stack master election. Stack members that are powered up within the same 10-second timeframe participate in the stack master election and have a chance to become the stack master. -
Page 16: Stack Member Priority Values
• If you move a stack member to a different switch stack, the stack member retains its number only if the number is not being used by another member in the stack. If it is being used by another member in the stack, the Cisco EtherSwitch service module or switch selects the lowest available number in the stack. -
Page 17: Switch Stack Software Compatibility Recommendations
IP services image fails, the other stack member running the IP services image becomes the stack master. When a Cisco EtherSwitch service module or switch running the IP services image joins a switch • stack running the IP base image of the same version, the IP services image Cisco EtherSwitch service module or switch does not automatically become the stack master. -
Page 18: Minor Incompatibility Between Cisco Etherswitch Service Modules
If none of the stack members are running software that can be installed on the Cisco EtherSwitch service module or switch in VM mode, the stack master scans the switch stack to see if there are any other recommended actions. Recommended actions appear in the system messages log. If there are no other actions to try, the stack master displays the recommended action to upgrade the software running on the switch stack. -
Page 19: Switch Stack Management Connectivity
Management Connectivity to the Switch Stack Through an IP Address The switch stack is managed through a single IP address. The IP address is a system-level setting and is not specific to the stack master or to any other stack member. You can still manage the stack through the same IP address even if you remove the stack master or any other stack member from the stack, provided there is IP connectivity. -
Page 20: Clustering Concepts
For example, Switch-2# is the prompt in privileged EXEC mode for stack member 2, and the system prompt for the stack master is Switch. Only the show and debug commands are available in a CLI session to a specific stack member. -
Page 21: Cluster Compatibility
If you are managing the cluster through Network Assistant, the device that has the latest software • should be the cluster command switch. The standby cluster command switch must be the same type as the command device. For example, • if the command device is a Cisco EtherSwitch service module, all standby command devices must be either Cisco EtherSwitch service modules or Catalyst 3750 switches. -
Page 22: Candidate And Member Characteristics
The cluster command switch discovers switches 11, 12, 13, and 14 because they are within three hops from the edge of the cluster. It does not discover switch 15 because it is four hops from the edge of the cluster. -
Page 23: Devices
Discovery of Candidates and Members Through Non-CDP-Capable and Noncluster-Capable Devices If a cluster command switch is connected to a non-CDP-capable third-party hub (such as a non-Cisco hub), it can discover cluster-enabled devices connected to that third-party hub. However, if the cluster command switch is connected to a noncluster-capable Cisco device, it cannot discover a cluster-enabled device connected beyond the noncluster-capable Cisco device. -
Page 24: Discovery Of Candidates And Members Through Different Vlans
VLANs 9, 16, and 62 and therefore discovers the switches in those VLANs. It does not discover the switch in VLAN 50. It also does not discover the switch in VLAN 16 in the first column because the cluster command switch has no VLAN connectivity to it. -
Page 25: Discovery Of Candidates And Members Through Routed Ports
The Layer 3 cluster command switch in the switch in VLAN 4. If the routed port path between the cluster command switch and cluster member switch 7 is lost, connectivity with cluster member switch 7 is maintained because of the redundant path through VLAN 9. -
Page 26: Discovery Of Newly Installed Switches In Clusters
Discovery of Newly Installed Switches in Clusters To join a cluster, the new, out-of-the-box switch must be connected to the cluster through one of its access ports. An access port (AP) carries the traffic of and belongs to only one VLAN. By default, the new switch and its access ports are assigned to VLAN 1. -
Page 27: Hsrp And Standby Cluster Command Switches
The switches in the cluster standby group are ranked according to HSRP priorities. The switch with • the highest priority in the group is the active cluster command switch (AC). The switch with the next highest priority is the standby cluster command switch (SC). The other switches in the cluster standby group are the passive cluster command switches (PC). -
Page 28: Virtual Ip Addresses In Clusters
IP address, not through the command-switch IP address. This is in case the IP address of the active cluster command switch is different from the virtual IP address of the cluster standby group. -
Page 29: Automatic Recovery Of Cluster Configuration
You must therefore rebuild the cluster. This limitation applies to all clusters: If the active cluster command switch fails and there are more • than two switches in the cluster standby group, the new cluster command switch does not discover any Catalyst 1900, Catalyst 2820, and Catalyst 2916M XL cluster member switches. -
Page 30: Ip Addresses In Clusters
For example, a cluster command switch named eng-cluster could name the fifth cluster member eng-cluster-5. If a switch has a hostname, it retains that name when it joins a cluster. It retains that hostname even after it leaves the cluster. -
Page 31: Passwords In Clusters
Passwords in Clusters You do not need to assign passwords to an individual switch if it will be a cluster member. When a switch joins a cluster, it inherits the command-switch password and retains it when it leaves the cluster. If no command-switch password is configured, the cluster member switch inherits a null password. - Page 32 If you used the CLI to configure a switch cluster that contains more than 16 actual devices and then try to display the cluster from Network Assistant. Network Assistant requires you to remove cluster members until the Network Assistant limit of 16 is reached.
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Page 33: How To Configure The Cisco Etherswitch Service Module
Otherwise, if a new stack master is elected, stack members connected to any VLANs not configured on the new stack master lose their connectivity to the switch cluster. You must change the VLAN configuration of the stack master or the stack members and add the stack members back to the switch cluster. -
Page 34: Accessing The Cli Through A Console Connection Or Through Telnet
CLI. You can use one of these methods to establish a connection to the Cisco EtherSwitch service module: Connect to the router console using Telnet or SSH and open a session to the switch using the •... -
Page 35: Using Interface Configuration Mode
9 and is assigned the first time the service module or switch initializes. The default Cisco EtherSwitch service module or switch number, before it is integrated into a switch stack, is 1; when a service module or switch has been assigned a stack member number, it keeps that number until another is assigned to it. -
Page 36: Configuring Etherswitch Service Module In Router
Layer 2 or Layer 3 functionality. Once the Cisco EtherSwitch service module interface has been configured and you boot up the service module image, you can switch back and forth between the router and the service module. SUMMARY STEPS dir flash:... - Page 37 Router(config-if)# end Step 10 service-module interface slot/port session Example: Router# service-module gigabitethernet1/0 session Step 11 dir flash: Example: Switch: dir flash: Step 12 boot flash: image Example: Switch: boot flash:c3750-ipservices-mz.122-0.0.13.EZ How to Configure the Cisco EtherSwitch Service Module Purpose Enters privileged EXEC mode.
- Page 38 Displays brief version of the Cisco EtherSwitch service module configuration information. Returns you to the router console while keeping the console session to the switch intact. Terminates the console session to the Cisco EtherSwitch service module. Displays the PoE statistics maintained on the Cisco EtherSwitch service module.
- Page 39 Cisco EtherSwitch Service Modules Feature Guide Examples This section provides the following examples: Sample Output for the dir flash: Command on the Router, page 39 • Sample Output for the boot flash: Command on the Router, page 39 • Sample Output for the show running config Command on the Router, page 40 •...
- Page 40 Trying 20.0.0.1, 2130 ... Open Switch: Sample Output for the dir flash: Command on the Cisco EtherSwitch Service Module The following example shows what appears when you enter the dir flash: command: Switch: dir flash: Directory of flash:/ -rwx 4814848...
- Page 41 Cisco EtherSwitch Service Modules Feature Guide Sample Output for the show ip interface brief Command on the Cisco EtherSwitch Service Module The following example shows what appears when you enter the show ip interface brief command: Switch# show ip interface brief Interface Vlan1...
- Page 42 IP information to the Gigabit Ethernet interface on the router representing the Cisco EtherSwitch service module and open a console session to Cisco EtherSwitch service module. You can then connect any other devices to the switch ports. If you have specific network needs, you can change the interface-specific and system- and stack-wide settings.
- Page 43 Cisco EtherSwitch Service Modules Feature Guide Table 2 Default Settings (continued) Feature Default VLAN VLAN trunking Trunk encapsulation mode VTP version Voice VLAN MSTP Optional spanning-tree features DHCP snooping DHCP snooping DHCP snooping information option IGMP snooping IGMP snooping IGMP filters IGMP throttling Port-based traffic Broadcast, multicast, and unicast storm...
- Page 44 • Cisco Network Assistant application program from your browser To use the CLI, enter commands at the switch> prompt through the console session to the Cisco EtherSwitch service module. For configuration information, see the Catalyst 3750 Switch Software Configuration Guide, Cisco IOS Release 12.2 at the following URL: http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/index.htm...
- Page 45 Do not use -n, where n is a number, as the last character in a hostname for any Cisco EtherSwitch service module. For additional information about switch clusters, see the “Clustering Concepts” section on page Sets the secret password to access privileged EXEC mode.
- Page 46 Enter the IP address and subnet mask for the Cisco EtherSwitch service module, and press Return. Step 10 When prompted to enable the Cisco EtherSwitch service module as the cluster command switch , enter yes or no. Step 11 Enter 2 and press Return.
- Page 47 The following example shows what appears when you configure the Cisco EtherSwitch service module to run as a standalone service module : Would you like to enable as a cluster command switch? [yes/no]: no You have now completed the initial configuration of the Cisco EtherSwitch service module, which displays its initial configuration.
- Page 48 [1] Return back to the setup without saving this config. [2] Save this configuration to nvram and exit. If you want to save the configuration and use it the next time the switch reboots, save it in nonvolatile RAM (NVRAM) by selecting option 2.
- Page 49 Cisco EtherSwitch Service Modules Feature Guide Command or Action Step 2 service-module gigabitethernet slot/unit reset Example: Router# service-module gigabitethernet1/0 reset Step 3 service-module gigabitethernet slot/unit reload Example: Router# service-module gigabitethernet1/0 reload Examples This section provides the following examples: • Sample Output for the service-module gigabitethernet shutdown Command, page 49 Sample Output for the service-module gigabitethernet reset Command, page 49 •...
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Page 50: How To Configure The Cisco Etherswitch Service Module In A Switch Stack
• A switch stack is identified in the network by its bridge ID and, if the switch stack is operating as a Layer 3 device, by its router MAC address. The bridge ID and router MAC address are determined by the MAC address of the stack master. -
Page 51: Default Switch Stack Configuration
SVI or routed port assigned to only one bridge group. All interfaces in the same group belong to the same bridge domain. How to Configure the Cisco EtherSwitch Service Module in a Switch Stack Default Switch Stack Configuration Default Setting... -
Page 52: Assigning A Stack Member Number
(partition) into two or more switch stacks, each with the same configuration. This can cause an IP address configuration conflict in your network. If you want the switch stacks to remain separate, change the IP address or addresses of the newly created switch stacks. If you did not intend to partition the switch stack, follow these steps: Power down the newly created switch stacks. - Page 53 The following example shows what appears when you enter the switch current-stack-member-number renumber new-stack-member-number command: Switch(config)# switch 6 renumber 7 WARNING:Changing the switch number may result in a configuration change for that switch. The interface configuration associated with the old switch number will remain as a provisioned configuration.
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Page 54: Setting The Stack Member Priority Value
*8 Master 0003.e31a.1200 1 Ready 2 Slave 0000.000.0000 0 Provisioned Setting the Stack Member Priority Value This section describes how to assign a priority value to a Cisco EtherSwitch service module in a switch stack from global configuration mode. Note This task is available only from the stack master. - Page 55 6 Slave 0003.e31a.1e00 1 Ready Verifying Information About the Switch Stack To verify the configuration changes that you save after you reset a specific stack member or the switch stack configuration, use the show platform stack-manager all command. For verification, Step 1 is useful for displaying all switch stack information. Step 2 is useful if you display information about a specific stack member, neighbors, or switch stack ports.
- Page 56 Slave To display information about a stack member or the switch stack, use the following commands: Step 2 Use the show switch command to display information related to the stack member or the switch • stack. Switch(config)# show switch 6...
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Page 57: How To Configure A Switch Cluster
Catalyst switches through a single IP address. In a switch cluster, 1 member must be the cluster command switch, and up to 15 other Cisco EtherSwitch service modules or switches can be cluster member switches. The total number of service modules or switches in a cluster cannot exceed 16. -
Page 58: Using The Cli To Manage Switch Clusters
Creating a Cluster Standby Group, page 62 • Using the CLI to Manage Switch Clusters This section shows how to use the CLI to manage switch clusters. Prerequisites Configure Cisco EtherSwitch service modules or switches that are members of a cluster from the CLI by first logging in to the cluster command service module or switch. - Page 59 Switch-3# show version Cisco Internet Operating System Software ... Access to the member-switch CLI is at the same privilege level as on the cluster command switch. The Note Cisco IOS commands then operate as usual. Therefore, if you use the rcommand command on the cluster command switch at the privileged level, the command accesses the cluster members at the privileged level.
- Page 60 A switch stack in a cluster equates to a single cluster member. There is a restriction specific to adding Note cluster members through Network Assistant.
- Page 61 Allows you to enter a password if the candidate service module has a password. The example shows how to add a switch as member 2 • with MAC address 00E0.1E00.2222 and the password key to a cluster.
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Page 62: Creating A Cluster Standby Group
Allows you to enter a password if the candidate service module has a password. The example shows how to add a switch as member 2 • with MAC address 00E0.1E00.2222 and the password key to a cluster. -
Page 63: Upgrading The Cisco Etherswitch Service Module Software
This section describes how to upgrade the Cisco EtherSwitch service module software by using TFTP. For more information about working with the Cisco IOS file system, configuration files, and software images, see the Catalyst 3750 Switch Software Configuration Guide, Cisco IOS Release 12.2 at the following URL: http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/index.htm. - Page 64 Example: Switch> enable Step 2 configure terminal Example: Switch# configure terminal Step 3 interface switch/slot/port Example: Switch(config)# interface fastethernet 1/0/24 Step 4 no switchport Example: Switch(config-if)# no switchport Step 5 ip address ip address/subnet mask Example: Switch(config-if)# ip address 172.16.1.100 255.255.255.0...
- Page 65 Sending 5, 100-byte ICMP Echos to 172.16.1.100, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/9 ms Copy the image from the tftp server to the switch flash using standard tftp copy procedure. Upgrading the Cisco EtherSwitch Service Module Software Purpose Shows the configuration applied on this interface.
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Page 66: Troubleshooting The Cisco Etherswitch Service Module Software
Recovering from a Lost or Forgotten Password When Password Recovery Is Disabled, page 76 • For more information about these and other troubleshooting topics, see the Catalyst 3750 Switch Software Configuration Guide, Cisco IOS Release 12.2 at the following URL: http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/index.htm... -
Page 67: Recovering From Corrupted Software Image
Recovering from a Corrupted Software Image Using Xmodem This section describes how to recover from a corrupted software image by using Xmodem. The router should have the switch image in the router flash memory or have network connectivity to the Note TFTP server. - Page 68 Cisco IOS Release 12.2(25)SEC Cisco EtherSwitch Service Modules Feature Guide Purpose Ensures that the switch stays at the boot loader prompt, so that you can copy a new image through the Xmodem Protocol. Initializes the flash memory file system on the switch.
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Page 69: Troubleshooting
Cisco EtherSwitch Service Modules Feature Guide Command or Action Step 8 dir flash: Example: switch> dir flash: Step 9 boot flash: image Example: switch> boot flash:c3825-i5-mz.050404 Troubleshooting If the downloaded image (files and directories) are not in flash memory on the Cisco EtherSwitch service module, repeat Step 1 through Step 6. - Page 70 Cisco EtherSwitch Service Modules Feature Guide Troubleshooting the Cisco EtherSwitch Service Module Software You are prompted for the service module interface number. Accept the default: Service Module interface number? [0]: You are prompted to confirm the buffer. Accept the default: 1k buffer? [confirm] You are prompted for the max retry count.
- Page 71 The following example shows what appears when you enter the service-module session command: Router# service-module gigabitethernet1/0 session Trying 41.0.0.1, 2130 ... Open Switch: Sample Output for the dir flash: Command on the Cisco EtherSwitch Service Module The following example shows what appears when you enter the dir flash: command: rommon>...
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Page 72: Recovering From A Lost Or Forgotten Password
During auto boot loader operation, you are not presented with the boot loader command-line prompt. You gain access to the boot loader command line if the switch is set to manually boot or, if an error occurs, the operating system (a corrupted Cisco IOS image) is loaded. You can also access the boot loader if you have lost or forgotten the switch password. - Page 73 Example: Switch: flash_init Step 5 load_helper filesystem:/file-url ... Example: Switch: load_helper flash:xyz Troubleshooting the Cisco EtherSwitch Service Module Software Purpose Connects to the service module and opens a Cisco EtherSwitch service module session. Displays a list of all files and directories in flash memory on the service module.
- Page 74 Switch: copy flash:config.text system:running-config Step 9 configure terminal Example: Switch# configure terminal Step 10 enable secret password Example: Switch(config): enable secret 5 $1$LiBw$0Xc1wyT.PXPkuhFwqyhVi0 Step 11 exit Example: Switch(config): exit Cisco IOS Release 12.2(25)SEC Cisco EtherSwitch Service Modules Feature Guide Purpose Renames the configuration file to config.text.old.
- Page 75 Switch: reload Troubleshooting the Cisco EtherSwitch Service Module Software Purpose Copies the configuration from the running configuration file to the switch startup configuration file. This procedure is likely to leave your Cisco • EtherSwitch service module virtual interface in a shut down state.
- Page 76 Prerequisites This recovery procedure requires that you have physical access to the Cisco EtherSwitch service module or switch. SUMMARY STEPS service-module interface slot/port password-reset service-module interface slot/port session dir flash: (Optional) load_helper filesystem:/file-url ...
- Page 77 Example: Router# service-module gigabitethernet1/0 session Step 3 dir flash: Example: rommon> dir flash: Step 4 load_helper filesystem:/file-url ... Example: Switch: load_helper flash: xyz Step 5 boot Example: Switch: boot Step 6 enable Example: Switch: enable Step 7...
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Page 78: Switch Stack Configuration Scenarios
SWITCH_PRIORITY=1 Switch Stack Configuration Scenarios Table 4 provides scenarios of how switch stack features are determined. Most of the scenarios assume that at least two Cisco EtherSwitch service modules are connected to each other through their Cisco StackWise ports. Cisco IOS Release 12.2(25)SEC... - Page 79 Cisco EtherSwitch Service Modules Feature Guide Table 4 Switch Stack Configuration Scenarios Scenario Action Stack master election Connect two powered-up switch stacks specifically determined through the Cisco StackWise ports. by existing stack masters Stack master election Connect two Cisco EtherSwitch service...
- Page 80 The stack member with the higher priority value retains its stack member number. The other stack member has a new stack member number. The stack master is retained. The new Cisco EtherSwitch service module is added to the switch stack.
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Page 81: Network Configuration Examples
Use the Mode button and port LEDs on the Cisco EtherSwitch service modules or Catalyst 3750 switch modules to identify which service modules or switch modules are stack masters and to witch stack master they belong. Cisco IOS Release 12.2(25)SEC “Stack Master... - Page 82 Network Configuration Examples Table 5 Increasing Network Performance Network Demands Too many users on a single network segment and a growing number of users accessing the Internet Increased power of new PCs, • workstations, and servers High bandwidth demand from •...
- Page 83 • Cost-effective wiring closet closet is to have a switch stack of up to nine Cisco EtherSwitch service modules. To preserve switch connectivity if one EtherSwitch service module in the stack fails, connect the switches and enable either cross-stack EtherChannel or cross-stack UplinkFast.
- Page 84 Gigabit Ethernet to the desktop. To prevent congestion, use QoS DSCP marking priorities on these switches. For high-speed IP forwarding at the distribution layer, connect the switches in the access layer to a gigabit multilayer switch in the backbone, such as a Catalyst 4500 gigabit switch or Catalyst 6500 gigabit switch.
- Page 85 The protected port feature provides security and isolation between ports on the switch, ensuring that subscribers cannot view packets destined for other subscribers. STP root guard prevents unauthorized devices from becoming the STP root switch. All ports have IGMP snooping or CGMP enabled for multicast traffic management.
- Page 86 Network Configuration Examples Figure 11 Cisco EtherSwitch Service Modules in a MAN Configuration Cisco 12000 Gigabit switch routers Catalyst 6500 switches Cisco integrated services router with EtherSwitch service module Catalyst switches Set-top box Cisco IOS Release 12.2(25)SEC Cisco EtherSwitch Service Modules Feature Guide...
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Page 87: Additional References
CCVP, the Cisco logo, and Welcome to the Human Network are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco... - Page 88 Cisco EtherSwitch Service Modules Feature Guide Additional References Cisco IOS Release 12.2(25)SEC...