1. Basic Information
The HP Procurve Switch 2824 is a Layer-2-Switch. It means that the switch does not only switch network packets at the MAC level. The switch is also able to route ip network packets.
For a full description of the capabilities please read the product description. This short guide describes only the basic handling and configuration of the switch.
The HP Procurve Switch 2824 has 24 autosensing ports. Every port supports network transfer rates of 10, 100 or 1000 MBit/s. Every port is able to determine the transfer rate of the network he's connected to.
The switch uses socalled VLANs to create network segments. Each switch port can be a member of one or more VLAN. A VLAN has no, one or more than one ip address. The routing between this network segments is done automatically if there are different ip address scopes configured.
The switch supports 3 configuration modes with different capabilities:
- The Command Line Interface (CLI). In this mode you can change all configuration options.
- The Menu Interface Mode. This mode provides a subset of switch commands in a easy-to-use menu format.
- The HP Web Browser Interface. This mode provides a subset of switch commands as HTML pages.
This guide uses only the Command Line Interface (CLI) to change the switch configuration. The CLI is also easy-to-use because there is an context sensitive help which lists all possible commands or options. After opening a telnet connection to the switch, you are in the CLI-mode. Use the <TAB> key to get this help. If you want to see options of commands, type in the command and than type again <TAB> and the CLI lists the command options.
2. Connect to the switch
The switch should be accessible in the Sisis-Network by using the name "switch" . We use a telnet connection.
$myhost> telnet 10.0.1.75 HP J4903A ProCurve Switch 2824 Firmware revision I.07.31 Copyright (C) 1991-2003 Hewlett-Packard Co. All Rights Reserved. RESTRICTED RIGHTS LEGEND Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subdivision (b) (3) (ii) of the Rights in Technical Data and Computer Software clause at 52.227-7013. HEWLETT-PACKARD COMPANY, 3000 Hanover St., Palo Alto, CA 94303 Password: Enter the right password to login. switch#
After connecting to the switch you can use the Menu Interface Mode by entering the command "menu".
Connect to the switch (section 2) and change to the configuration mode (the default config name of the switch isn't "switch" but "HP ProCurve Switch 2824") :
HP ProCurve Switch 2824#config HP ProCurve Switch 2824(config)#
Set the time:
HP ProCurve Switch 2824(config)# time 17:12 07/22/04 Thu Jul 22 17:12:09 2004 HP ProCurve Switch 2824(config)#
Set the hostname:
HP ProCurve Switch 2824(config)# hostname switch switch(config)#
Set the correct time zone:
switch(config)# time timezone 60 switch(config)#
Set hunter as the TimeP server:
switch(config)# ip timep manual 188.8.131.52 switch(config)#
Set the correct time rule:
switch(config)# time daylight-time-rule Western-Europe switch(config)#
Set the default gateway to no gateway. The switch shouldn't have a default gateway, because this is a the central Sisis switch. We want to loose unrouted data should.
switch(config)# ip default-gateway 0.0.0.0 switch(config)# Enable routing: switch(config)# ip routing switch(config)#
4. VLAN Configuration
The default configuration of the switch provides 1 VLAN. This "DEFAULT_VLAN" can be renamed but not deleted. At least one VLAN must exist. In default configuration all 24 ports belong to the "DEFAULT_VLAN". This could be useful, if we wouldn't use any network segmentation. All ports of a VLAN build a physical subnet. Thats why the default configuration creates a big subnet with all ports.
The SISIS-network now consists of 3 physical subnets. The 10.0.1.0 subnet, the 184.108.40.206 subnet and the 220.127.116.11 subnet. The 10.0.1.0 is basic subnet for Oberhaching. All important server and most clients have an ip address of this local class C subnet. Some of the server of this network are directly connected the the HP ProCurve 2824 Switch.
Thats why we created a VLAN "SISIS_10" with the port members 1-22. On port 23 and 24 we connected the 18.104.22.168 subnet and the 22.214.171.124 subnet.
The following table shows the actual configuration:
VLAN IP Config IP Address Subnet Mask Ports ------------ + ---------- --------------- --------------- --------- SISIS_10 | Manual 10.0.1.75 255.255.255.0 1-22 SISIS_193_32 | Manual 126.96.36.199 255.255.255.224 23 SISIS_193_64 | Manual 188.8.131.52 255.255.255.224 24
To save this configuration (starting from default configuration) use the following commands on the CLI after login:
configure vlan 1 name "SISIS_10" ip address 10.0.1.75 255.255.255.0 untagged 1-22 no untagged 23-24 exit vlan 2 name "SISIS_193_32" untagged 23 ip address 184.108.40.206 255.255.255.0 exit vlan 3 name "SISIS_193_64" untagged 23 ip address 220.127.116.11 255.255.255.0 exit
The switch automatically creates a route for directly-connected networks (VLANs) when a IP VLAN interface was added. This will be done after setting the ip address of the VLAN.
5. Static Routes
You can add up to 16 routes directly to the route table of the switch. The corresponding CLI-command is:
ip route 10.0.4.0 255.255.255.0 18.104.22.168
This command routes ip packets of the network 10.0.4.0 to the ip address 22.214.171.124.
Delete this static route with the CLI-command:
no ip route 10.0.4.0 255.255.255.0 126.96.36.199
6. Get / Show configuration parameters
The CLI-command "show" provides all configuration. This command kows the following options:
option description ------------------------------------------------------------------------------- accounting Show Accounting configuration parameters. arp Show the IP ARP translation table. authentication Show Authentication configuration parameters. boot-history Display the system boot log. cdp Show CDP configuration and neighbors discovered. config Show the switch startup configuration. console Show serial link/console settings. cpu Show Average CPU utilization over last 1 second, 5 seconds and 1 minute or the specified time. crypto Display flash files used for authentication. debug Display currently active debug log destinations and types. fault-finder Show the fault-finder table. filter Show a table of security filters or a filter detailed information, if the filter's INDEX is specified. flash Show the versions of software stored in the Primary and Secondary image locations. gvrp Show GVRP settings. history Show previously entered commands. instrumentation Show internal version-dependant counters for debugging. interfaces Show port configuration and status information. ip Show the device IP configuration. port-security Show a table describing port security settings. radius Show RADIUS status and statistics information. rmon Show detailed rmon statistics for the ports. running-config Show the switch running configuration. snmp-server Display information on all SNMP communities and trap receivers configured on the switch. snmpv3 Show configuration of SNMPv3 features. sntp Show configured time protocol and servers. spanning-tree Show spanning tree status information. stack Show the stack status of this switch. system-information Show global configured and operational system parameters. tacacs Show TACACS status and statistics. tech Display output of a predefined command sequence used by technical support. telnet Show active incoming and outgoing sessions. terminal Show logical window dimensions. time Show current date and time. timep Show configured time protocol and servers. trunks Show a list of ports and the trunks to which they belong. version Show software version. vlans Show status information for all VLANs.
7. Saving Configuration Changes
The switch maintains two configuration files, the running-config and the startup-config.
The startup-config is saved in the flash-memory of the switch. It is the saved configuration und this one is used while booting the switch.
After boot-process is done, the startup-config is copied to the volatile memory und used as running-config. All configuration changes are made in the volatile memory. So you have a possibilty to try changes in the running-config. If you are satisfied that the changes are satisfactory, use the command
to make the changes permanent. If you wouldn't do so, the switch will not use the changed options when booting next time.
The following commands are useful to handle the two configuration files:
show config Display a listing of the startup-configuration file of the switch. show running config Display a listing of the running-configuration file of the switch. show config status Compares the current running-configuration file to the startup-config and determines whether there are updates or no.
To reset the switch to the Factory-Default configuration use the following command:
If you want to make a backup of the configuration file to an other host you must have a tftp-Server running on this host. The following command saves the running-config to the host 10.0.1.37 to the file "ProCurveConf"
copy running-config tftp 10.0.1.37 ProCurveConf
To use a saved configuration from a remote host, try the following command:
copy tftp running_config 10.0.1.37 ProCurveConf
The last command replaces the running-config with a saved config named "ProCurveConf" on host 10.0.1.37.
8. Software reboot
To reboot from the switch with the command: