Cisco 2950 management software

cisco 2950 management software

Basic configuration to enable remote administration on the Cisco Catalyst includes configuring an IP address on the switch and also. All LEDs (except the utilization meter [UTIL]) are visible through the GUI management applications—the Network Assistant application for multiple switches and. The Catalyst switch supports only one management VLAN. You can use this global configuration command to change it. VNC SERVER CONFIGURATION ORACLE LINUX 6 Сообщаю Для вас, что.

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If you activate SLIP and your terminal does not support SLIP, you must establish a Telnet connection to the switch and deactivate sl0 or power cycle the switch in order to regain access to the console port. Note: Unless you have a terminal that can run SLIP and you know how to use it, only perform these steps from a Telnet connection to the switch.

Issue the set interface sl0 1. Issue the slip attach command at the command prompt in order to activate SLIP mode. Issue the slip detach command at the command prompt in order to deactivate SLIP mode. Packets received on the me1 interface never reach the switching fabric, and there is no access to the me1 interface except through the Ethernet port on the Supervisor Engine.

Another characteristic of the me1 interface is that, when the switch is in ROM monitor ROMmon , interface me1 is the only interface that is active. However, you must be directly on the console port. You configure the IP address on the me1 interface in a way that is similar to the configuration on the sc0 interface. The only difference is that you cannot attach the me1 interface to any VLAN because this interface does not reach the switching fabric as the sc0 interface does.

Issue the show interface command at the switch prompt in order to view the default status of the me1 interface. Issue the set interface me1 If you enter only an IP address after the set interface me1 Note: Normally, the me1 interface is configured to be in a different subnet than the sc0 interface, which allows both interfaces to remain up.

Both interfaces can be configured in the same subnet or with the same IP address, but the sc0 interface is shut down in this case. Interface me1 always takes precedence in this instance. For example, if you have already configured the sc0 interface with an IP address of If you noticed in Step 3 that the status of me1 is down instead of up, issue this command in order to bring the interface up manually:.

Note: If you want to be able to manage the switch through a router, you must configure a default gateway because the switch does not participate in IP routing. When you issue the show ip route command, notice that the gateway for the subnet me1 is assigned to its own address. Note: If sc0 and me1 are in different subnets, you can configure multiple default gateways. However, the gateway that is defined first becomes the primary gateway.

If this is the gateway that you intend, you must use the keyword primary at the end of the command in order to change the primary default gateway. For example, You have sc0 with IP address You configure me1 with an IP address of Note: If you are connected to the switch through Telnet from a different subnet, your connection is lost when you clear the routes.

There are three options to configure this interface. This port is not active during normal switch operation and cannot be used as a management interface. Option 1 —Configure a loopback interface for switch management.

There are a few advantages to a loopback interface. A loopback is a virtual interface that is always up. Packets that are routed to the loopback interface are rerouted back to the L3 switch or router and processed locally. IP packets that are routed out the loopback interface but are not destined to the loopback interface are dropped.

This means that the loopback interface serves as the null 0 interface also. This example uses loopback You must also configure a routing protocol to distribute the subnet that is assigned to the loopback address or create a static route. Option 2 —Configure the interface as an L3 routed interface with an IP address. Therefore, you need to make any interface that is connected to the rest of the network an L3 routed interface.

Issue the no switchport command, and configure the desired IP address. The example provides an illustration. All interfaces are enabled by default, so you do not need to issue the no shutdown command. Issue the switchport mode access command and the switchport access vlan vlan-id command, and use a corresponding switched virtual interface SVI with an IP address.

Issue the switchport mode access command under the desired physical interface if you want confirmation that the interface is an access switch port. But if you want confirmation in the configuration that the interface is indeed an access switch port, you need to use the switchport mode access command. You must then issue the switchport access vlan vlan-id command in order to configure an L2 interface to be a part of the new VLAN. This example demonstrates this process:.

If you are not routing IP, issue the ip default-gateway ip-address command in order to configure a gateway router IP address. Issue the show ip route command in order to view the status of the routing table. Issue the switchport mode access command and the switchport access vlan vlan-id command, and use a corresponding SVI with an IP address.

Issue the switchport mode access command under the desired physical interface in order to make the interface an L2 interface in default VLAN 1. These switches can have only one active management interface at a time. The default management interface is VLAN 1. You cannot delete VLAN 1 on these switches.

However, you can create another VLAN interface for management, which the examples in this section demonstrate. This additional option is the global vlan vlan-id command. Remember that you cannot delete the VLAN 1 management interface. Note: The management interface can be in the shut down state after a reload if the management interface is not a member of VLAN 1 and if you have configured any of these commands on the switch:. Make the management interface a member of VLAN 1.

Alternatively, remove these commands from the configuration or upgrade the switch software to the latest image in order to solve this issue. That's a really good answer on how to update the firmware but also keep in mind that there should also be a reason to need to do this. Switch software from 10 years ago works fine and you generally update switch firmware because you need to in order to address a specific issue you are having or you need to take advantage of a new feature in the newer software, it really doesn't change much from the original except to fix very minor bugs you will likely never encounter.

The switch software is kind of unique in that it programs the ASICs and ports on start-up in accordance with your configuration but once the switch is running, most of the work is done in silicon. Unless you have hit a bug or a limitation that you need to get around, leave it alone. Your school may like the , but if they're trying to train you on current Cisco technology and features, they may want to think about advancing just a tiny bit and investing in the Both are supported on the , but not the Then the IOS you have will be fine.

I have two 's here in my lab alongside one S and one X. As far as layer 2 goes, there is nothing the 's do that the can't. In fact the is better to learn on because it has a number of deprecated commands that are useful to learn. Anyone learning on a will never see things like the vlan-database command and will never have to choose a trunk encapsulation mode before configuring a trunk interface. Both those are pretty much never used these but knowing them gives you the edge in case you come across a in the field that needs working on.

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