今回は大分前に買ってから全然触っていなかったCatalyst2950を触る事にします。
自分用のメモです。
ユーザー
ユーザーEXECモード
↓
イネーブルEXECモード
↓
グローバルコンフィグレーションモード
↓
インターフェースコンフィグレーションモード
とモードを変更するのは以下のような感じ
>enable Password: #configure terminal Enter configuration commands, one per line. End with CNTL/Z. (config)#interface fa0/1 (config-if)#
抜けるには「exit」。イネーブルEXECモードからユーザーEXECモードに戻る場合は「diable」で。
showコマンド
- バージョン確認
「show version」で表示されます。
>show version
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6K2L2Q4-M), Version 12.1(22)EA13, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by cisco Systems, Inc.
Compiled Fri 27-Feb-09 22:20 by amvarma
Image text-base: 0x80010000, data-base: 0x80680000
ROM: Bootstrap program is C2950 boot loader
2950-1 uptime is 11 minutes
System returned to ROM by power-on
System image file is "flash:/c2950-i6k2l2q4-mz.121-22.EA13.bin"
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
export@cisco.com.
cisco WS-C2950-24 (RC32300) processor (revision N0) with 19912K bytes of memory.
Processor board ID *****
Last reset from system-reset
Running Standard Image
24 FastEthernet/IEEE 802.3 interface(s)
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: *****
Motherboard assembly number: *****
Power supply part number: *****
Motherboard serial number: *****
Power supply serial number: *****
Model revision number: N0
Motherboard revision number: B0
Model number: WS-C2950-24
System serial number: *****
Configuration register is 0xF
- ログを表示する
「show logging」で表示されます。
>show logging
Syslog logging: enabled (0 messages dropped, 0 messages rate-limited, 0 flushes, 0 overruns)
Console logging: level debugging, 5 messages logged
Monitor logging: level debugging, 0 messages logged
Buffer logging: level debugging, 5 messages logged
Exception Logging: size (4096 bytes)
File logging: disabled
Trap logging: level informational, 10 message lines logged
Log Buffer (4096 bytes):
00:00:16: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
00:00:18: %SYS-5-CONFIG_I: Configured from memory by console
00:00:19: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6K2L2Q4-M), Version 12.1(22)EA13, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by cisco Systems, Inc.
Compiled Fri 27-Feb-09 22:20 by amvarma
00:00:19: %SNMP-5-COLDSTART: SNMP agent on host 2950-1 is undergoing a cold start
00:05:38: %SYS-5-CONFIG_I: Configured from console by console
- サポートを受けるときの情報収集
「show tech-support」コマンドを良く使います。
詳細な情報が各種大量に表示されます。
- インターフェースの表示
「show interfaces」で。何も指定しなければ全てのインターフェースについて表示します。
インターフェースを指定すると、そのインターフェースに対する情報のみ表示します。
>show interfaces
Vlan1 is up, line protocol is down
Hardware is CPU Interface, address is 000f.f7ce.1800 (bia 000f.f7ce.1800)
Internet address is xxx.xxx.xxx.xxx/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 packets output, 0 bytes, 0 underruns
0 output errors, 2 interface resets
0 output buffer failures, 0 output buffers swapped out
今回対象としたインターフェースは特に設定をしておらず、
物理的にも配線をつないでいないので、少々寂しいかも。
show interfaces fa0/1
FastEthernet0/1 is down, line protocol is down (notconnect)
Hardware is Fast Ethernet, address is 000f.f7ce.1801 (bia 000f.f7ce.1801)
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed, media type is 100BaseTX
input flow-control is unsupported output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:23:02, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
- VLANの表示
「show vlan」です。下記の例は、まだ特にVLAN設定していないので初期状態のものです。
>show vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 0 0
1003 tr 101003 1500 - - - - - 0 0
1004 fdnet 101004 1500 - - - ieee - 0 0
1005 trnet 101005 1500 - - - ibm - 0 0
Remote SPAN VLANs
------------------------------------------------------------------------------
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
コンフィグ関係
- コンフィグの表示
現在のコンフィグなら「show running-config」、
保存してあるコンフィグなら「show startup-config」でOK.
- コンフィグの保存
設定を変えても保存しないと再起動時に消えてしまいます。
保存するにはコンフィグの書き込みを行います。
# copy running-config startup-config Destination filename [startup-config]? Building configuration... [OK]
- 保存してある設定の消去
「erase startup-config」で消去可能です。
#erase startup-config Erasing the nvram filesystem will remove all configuration files! Continue? [confirm] [OK] Erase of nvram: complete
機器の再起動
「reload」で再起動します。
# reload Proceed with reload? [confirm] 00:45:46: %SYS-5-RELOAD: Reload requested by console. Reload Reason: Reload Command. ・・・
ホスト名の設定
「hostname <ホスト名>」で設定します。
Switch(config)#hostname 2950-1 2950-1(config)#
コマンドの使い方が分からない時
コマンドの後に「?」を押すと入力候補が表示されます。
#show ? access-lists List access lists accounting Accounting data for active sessions aliases Display alias commands arp ARP table boot show boot attributes buffers Buffer pool statistics cdp CDP information clock Display the system clock cluster Cluster information cns CNS agents configuration Contents of Non-Volatile memory controllers Interface controller status crypto Encryption module data-corruption Show data errors debugging State of each debugging option dhcp Dynamic Host Configuration Protocol status dot1x Dot1x information dtp DTP information env Environmental facilities errdisable Error disable etherchannel EtherChannel information exception exception informations file Show filesystem information flash: display information about flash: file system flowcontrol show flow control information history Display the session command history hosts IP domain-name, lookup style, nameservers, and host table html HTML helper commands idb List of Hardware Interface Descriptor Blocks interfaces Interface status and configuration inventory Show the physical inventory ip IP information kerberos Show Kerberos Values lacp Port channel information line TTY line information location Display the system location logging Show the contents of logging buffers mac MAC configuration mac-address-table MAC forwarding table memory Memory statistics mls Show MultiLayer Switching information monitor Show a SPAN session mvr Show mvr global parameters ntp Network time protocol pagp Port channel information parser Show parser commands pm Show Port Manager commands port-security Show secure port information post Power On Self Test results privilege Show current privilege level processes Active process statistics queue Show queue contents queueing Show queueing configuration radius Shows radius information region Region Manager Status registry Function registry information reload Scheduled reload information rhosts Remote-host+user equivalences rmon rmon statistics rps Show color of RPS led rtr Response Time Reporter (RTR) running-config Current operating configuration sessions Information about Telnet connections setup Show express setup settings snmp snmp statistics spanning-tree Spanning tree topology ssh Status of SSH server connections stacks Process stack utilization standby Hot Standby Router Protocol (HSRP) information startup-config Contents of startup configuration storm-control Show packet storm control configuration subsys Show subsystem information system Show the system configuration tacacs Shows tacacs+ server statistics tcp Status of TCP connections tech-support Show system information for Tech-Support template Template information terminal Display terminal configuration parameters time-range Time range udld UDLD information users Display information about terminal lines version System hardware and software status vlan VTP VLAN status vmps VMPS version information vtp VTP information wrr-queue WRR queue
今日はこんなところで。
