Adott tehát a topológia:
Az alábbiakat fogjuk végrehajtani:
- Trunkok beállítása
- VTP beállítása – domain: TSHOOT, version 2, pass: cisco
- VLAN 2 – VTP_TESZT vlan létrehozása
- 2 db Etherchannel felkonfigurálása
- Fa0/1, Fa0/2 –> LACP, DSW1 az active, ASW1 a passive, Layer2-es EtherChannel
- Fa0/47, Fa0/48 –> PaGP, DSW1 és ASW1 “on”, Layer3-as Etherchannel, IP: 10.0.0.0 /30
Először megmutatom az alap konfigot DSW1-en, az alapokkal indulunk:
User Access Verification Username: tshoot Password: DSW1-Cat3560#sh run Building configuration... Current configuration : 2692 bytes ! ! Last configuration change at 12:07:17 UTC Mon Apr 2 2012 by tshoot ! NVRAM config last updated at 11:30:16 UTC Mon Apr 2 2012 by tshoot ! version 12.2 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname DSW1-Cat3560 ! boot-start-marker boot-end-marker ! enable secret 5 $1$UZSZ$95Ls01Ovmg/Ld3XnImFwO1 ! username tshoot privilege 15 password 0 cisco no aaa new-model system mtu routing 1500 vtp domain tshoot_lab --More-- vtp mode transparent ip subnet-zero ! ! ! ! ! ! ! ! ! ! spanning-tree mode rapid-pvst spanning-tree extend system-id ! vlan internal allocation policy ascending ! vlan 50 ! ! ! ! interface FastEthernet0/1 --More-- ! interface FastEthernet0/2 ! interface FastEthernet0/3 ! interface FastEthernet0/4 ! interface FastEthernet0/5 ! interface FastEthernet0/6 ! interface FastEthernet0/7 ! interface FastEthernet0/8 ! interface FastEthernet0/9 ! interface FastEthernet0/10 ! interface FastEthernet0/11 ! interface FastEthernet0/12 ! --More-- interface FastEthernet0/13 ! interface FastEthernet0/14 ! interface FastEthernet0/15 ! interface FastEthernet0/16 ! interface FastEthernet0/17 ! interface FastEthernet0/18 ! interface FastEthernet0/19 ! interface FastEthernet0/20 ! interface FastEthernet0/21 ! interface FastEthernet0/22 ! interface FastEthernet0/23 ! interface FastEthernet0/24 --More-- ! interface FastEthernet0/25 ! interface FastEthernet0/26 ! interface FastEthernet0/27 ! interface FastEthernet0/28 ! interface FastEthernet0/29 ! interface FastEthernet0/30 ! interface FastEthernet0/31 ! interface FastEthernet0/32 ! interface FastEthernet0/33 ! interface FastEthernet0/34 ! interface FastEthernet0/35 ! --More-- interface FastEthernet0/36 ! interface FastEthernet0/37 ! interface FastEthernet0/38 ! interface FastEthernet0/39 ! interface FastEthernet0/40 ! interface FastEthernet0/41 ! interface FastEthernet0/42 ! interface FastEthernet0/43 ! interface FastEthernet0/44 ! interface FastEthernet0/45 ! interface FastEthernet0/46 ! interface FastEthernet0/47 --More-- ! interface FastEthernet0/48 ! interface GigabitEthernet0/1 ! interface GigabitEthernet0/2 ! interface GigabitEthernet0/3 ! interface GigabitEthernet0/4 ! interface Vlan1 ip address 192.168.1.1 255.255.255.252 ! ip classless ip http server ip http secure-server ! ! ! control-plane ! banner motd ^C --More-- .___ .__ __ __| _/ |__| ______ _/ |_ _______ / __ | | | / ___/ __ _ __ / /_/ | | | ___ | | | | / ____ | |__| /____ > |__| |__| / / ^C ! line con 0 exec-timeout 0 0 logging synchronous login local line vty 0 4 login line vty 5 15 login ! end
Nézzük meg CDP-vel, hogy minden link látszik -e ASW1 felé:
DSW1-Cat3560#sh cdp ne Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone Device ID Local Intrfce Holdtme Capability Platform Port ID ASW1-Cat3550 Fas 0/48 177 S I WS-C3550- Fas 0/48 ASW1-Cat3550 Fas 0/47 177 S I WS-C3550- Fas 0/47 ASW1-Cat3550 Fas 0/2 177 S I WS-C3550- Fas 0/2 ASW1-Cat3550 Fas 0/1 177 S I WS-C3550- Fas 0/1
L2-ben rendben vagyunk. Nézzünk egy VLAN database-t és egy VTP statust DSW1-en:
DSW1-Cat3560#sh vl b VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active 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, Fa0/25, Fa0/26 Fa0/27, Fa0/28, Fa0/29, Fa0/30 Fa0/31, Fa0/32, Fa0/33, Fa0/34 Fa0/35, Fa0/36, Fa0/37, Fa0/38 Fa0/39, Fa0/40, Fa0/41, Fa0/42 Fa0/43, Fa0/44, Fa0/45, Fa0/46 Gi0/1, Gi0/2, Gi0/3, Gi0/4 50 VLAN0050 active 1002 fddi-default act/unsup 1003 trcrf-default act/unsup 1004 fddinet-default act/unsup 1005 trbrf-default act/unsup DSW1-Cat3560#sh vtp status VTP Version : running VTP2 Configuration Revision : 0 Maximum VLANs supported locally : 1005 Number of existing VLANs : 6 VTP Operating Mode : Transparent VTP Domain Name : tshoot_lab VTP Pruning Mode : Enabled VTP V2 Mode : Enabled VTP Traps Generation : Disabled MD5 digest : 0xCB 0xCD 0xC1 0x73 0x74 0x91 0x6D 0xF9 Configuration last modified by 192.168.1.1 at 4-1-93 05:22:07
ASW1-en:
ASW1-Cat3550#sh vl b VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active 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, Fa0/25, Fa0/26 Fa0/27, Fa0/28, Fa0/29, Fa0/30 Fa0/31, Fa0/32, Fa0/33, Fa0/34 Fa0/35, Fa0/36, Fa0/37, Fa0/38 Fa0/39, Fa0/40, Fa0/41, Fa0/42 Fa0/43, Fa0/44, Fa0/45, Fa0/46 Gi0/1, Gi0/2 2 VLAN0002 active 10 VLAN0010 active 20 VLAN0020 active 30 VLAN0030 active 40 VLAN0040 active 50 VLAN0050 active 60 VLAN0060 active 100 VLAN0100 active VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 999 NATIVE-TEST active 1002 fddi-default act/unsup 1003 trcrf-default act/unsup 1004 fddinet-default act/unsup 1005 trbrf-default act/unsup ASW1-Cat3550#sh vtp status VTP Version : 2 Configuration Revision : 10 Maximum VLANs supported locally : 1005 Number of existing VLANs : 14 VTP Operating Mode : Client VTP Domain Name : lab VTP Pruning Mode : Enabled VTP V2 Mode : Enabled VTP Traps Generation : Disabled MD5 digest : 0x0C 0x3C 0x4B 0x38 0x9B 0xE0 0x1A 0xAF Configuration last modified by 192.168.1.1 at 4-1-93 05:22:07
Félkövérrel kiemeltem a lényeget: nem atzonosak a VTP domainek, nem azonos a jelszó, az egyik switch transparent módban van, és mivel a VLAN-ok is különböznek, nem biztosan működik a VTP.
A VTP működéséhez az alábbiak kellenek:
- Trunk a switchek között
- Azonos domain name
- Azonos VTP version
- Azonos VTP password
- Ne legyen transparent módban (transparent módban továbbítja a VTP kereteket, de nem frissíti a VLAN adatbázisát, egyfajta “relay”-ként működik a switch).
Nézzük a trunk-ök rendben vannak -e:
DSW1-Cat3560#sh int trunk Port Mode Encapsulation Status Native vlan Fa0/1 auto n-isl trunking 1 Fa0/2 auto n-isl trunking 1 Fa0/47 auto n-isl trunking 1 Fa0/48 auto n-isl trunking 1 Port Vlans allowed on trunk Fa0/1 1-4094 Fa0/2 1-4094 Fa0/47 1-4094 Fa0/48 1-4094 Port Vlans allowed and active in management domain Fa0/1 1,50 Fa0/2 1,50 Fa0/47 1,50 Fa0/48 1,50 Port Vlans in spanning tree forwarding state and not pruned Fa0/1 1,50 Fa0/2 50 Fa0/47 50 Port Vlans in spanning tree forwarding state and not pruned
Hmm… ISL a trunk encapsulation. Ez működik, de jobban szeretjük a dot1q-t (standard, az ISL Cisco fejlesztés). Miért is lett ISL? Azért, mert ha mindkét switch támogatja az ISL-t, azt választják, ha az egyik nem, akkor a 802.1q-t (ha az egyik switch 2960-as lenne, dot1q lenne a trunk, mivel a 2960-as nem támogatja az ISL-t).
A trunk azért állt össze, mert ASW1-en minden port dynamic desirable (alapértelmezett a 3550-esen), és:
- dynamic desirable + auto = trunk
- auto + auto = access
- access + dynamic desirable = access
- dynamic desirable + dynamic desirable = trunk
Állítsuk át dot1q-ra, kézzel trunk-re, és legyen a native VLAN a 999-es:
DSW1-Cat3560#conf t Enter configuration commands, one per line. End with CNTL/Z. DSW1-Cat3560(config)#int ra fa0/1 - 2 , fa0/47 - 48 DSW1-Cat3560(config-if-range)#sw trunk en dot1q DSW1-Cat3560(config-if-range)#sw mo trunk DSW1-Cat3560(config-if-range)#^Z DSW1-Cat3560# Apr 2 18:49:20.817: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down Apr 2 18:49:20.817: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down Apr 2 18:49:20.826: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Apr 2 18:49:20.834: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/47, changed state to down Apr 2 18:49:20.834: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0 DSW1-Cat3560#/48, changed state to down Apr 2 18:49:21.790: %SYS-5-CONFIG_I: Configured from console by tshoot on console DSW1-Cat3560# Apr 2 18:49:23.879: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Apr 2 18:49:23.896: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Apr 2 18:49:23.913: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/47, changed state to up Apr 2 18:49:23.929: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/48, changed state to up DSW1-Cat3560# Apr 2 18:49:25.087: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560#sh int trunk Port Mode Encapsulation Status Native vlan Fa0/1 on 802.1q trunking 1 Fa0/2 on 802.1q trunking 1 Fa0/47 on 802.1q trunking 1 Fa0/48 on 802.1q trunking 1 Port Vlans allowed on trunk Fa0/1 1-4094 Fa0/2 1-4094 Fa0/47 1-4094 Fa0/48 1-4094 Port Vlans allowed and active in management domain Fa0/1 1,50 Fa0/2 1,50 Fa0/47 1,50 Fa0/48 1,50 Port Vlans in spanning tree forwarding state and not pruned Fa0/1 1 Fa0/2 none Fa0/47 none Port Vlans in spanning tree forwarding state and not pruned Fa0/48 none
A trunk dot1q lett. Az alábbi parancsokat használtam:
- switchport trunk encapsulation dot1q: a trunk encapsulation-t dot1q-ra állítja
- switchport mode trunk: az interface-t trunk módba állítja – ettől még a DTP (Dynamic Trunk Protocol) működik!
Állítsuk át a native vlan-t 999-re:
DSW1-Cat3560#conf t Enter configuration commands, one per line. End with CNTL/Z. DSW1-Cat3560(config)#vlan 999 DSW1-Cat3560(config-vlan)#name NATIVE DSW1-Cat3560(config-vlan)#exit DSW1-Cat3560(config)#int ra fa0/1 - 2 , fas0/47 - 48 DSW1-Cat3560(config-if-range)#sw trunk native vlan 999 DSW1-Cat3560(config-if-range)#^Z DSW1-Cat3560# Apr 2 18:50:11.744: %SYS-5-CONFIG_I: Configured from console by tshoot on console DSW1-Cat3560# Apr 2 18:50:42.505: %SPANTREE-2-RECV_PVID_ERR: Received BPDU with inconsistent peer vlan id 1 on FastEthernet0/1 VLAN999. Apr 2 18:50:42.505: %SPANTREE-2-BLOCK_PVID_PEER: Blocking FastEthernet0/1 on VLAN0001. Inconsistent peer vlan. Apr 2 18:50:42.505: %SPANTREE-2-BLOCK_PVID_LOCAL: Blocking FastEthernet0/1 on VLAN0999. Inconsistent local vlan. Apr 2 18:50:42.514: %SPANTREE-2-RECV_PVID_ERR: Received BPDU with inconsistent peer vlan id 1 on FastEthernet0/2 VLAN999. Apr 2 18:50:42.514: %SPANTREE-2- DSW1-Cat3560#BLOCK_PVID_PEER: Blocking FastEthernet0/2 on VLAN0001. Inconsistent peer vlan. Apr 2 18:50:42.522: %SPANTREE-2-BLOCK_PVID_LOCAL: Blocking FastEthernet0/2 on VLAN0999. Inconsistent local vlan. Apr 2 18:50:42.522: %SPANTREE-2-RECV_PVID_ERR: Received BPDU with inconsistent peer vlan id 1 on FastEthernet0/47 VLAN999. Apr 2 18:50:42.522: %SPANTREE-2-BLOCK_PVID_PEER: Blocking FastEthernet0/47 on VLAN0001. Inconsistent peer vlan. Apr 2 18:50:42.522: %SPANTREE-2-BLOCK_PVID_LOCAL: Blocking FastEthernet0/47 DSW1-Cat3560#on VLAN0999. Inconsistent local vlan. Apr 2 18:50:42.522: %SPANTREE-2-RECV_PVID_ERR: Received BPDU with inconsistent peer vlan id 1 on FastEthernet0/48 VLAN999. Apr 2 18:50:42.522: %SPANTREE-2-BLOCK_PVID_PEER: Blocking FastEthernet0/48 on VLAN0001. Inconsistent peer vlan. Apr 2 18:50:42.522: %SPANTREE-2-BLOCK_PVID_LOCAL: Blocking FastEthernet0/48 on VLAN0999. Inconsistent local vlan. Apr 2 18:50:43.512: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down DSW1-Cat3560# Apr 2 18:51:12.453: %SPANTREE-2-UNBLOCK_CONSIST_PORT: Unblocking FastEthernet0/1 on VLAN0001. Port consistency restored. Apr 2 18:51:12.453: %SPANTREE-2-UNBLOCK_CONSIST_PORT: Unblocking FastEthernet0/1 on VLAN0999. Port consistency restored. Apr 2 18:51:12.453: %SPANTREE-2-UNBLOCK_CONSIST_PORT: Unblocking FastEthernet0/2 on VLAN0001. Port consistency restored. Apr 2 18:51:12.453: %SPANTREE-2-UNBLOCK_CONSIST_PORT: Unblocking FastEthernet0/2 on VLAN0999. Port consistency restored. Apr 2 18:51:12.4 DSW1-Cat3560#53: %SPANTREE-2-UNBLOCK_CONSIST_PORT: Unblocking FastEthernet0/47 on VLAN0001. Port consistency restored. Apr 2 18:51:12.453: %SPANTREE-2-UNBLOCK_CONSIST_PORT: Unblocking FastEthernet0/47 on VLAN0999. Port consistency restored. Apr 2 18:51:12.453: %SPANTREE-2-UNBLOCK_CONSIST_PORT: Unblocking FastEthernet0/48 on VLAN0001. Port consistency restored. Apr 2 18:51:12.453: %SPANTREE-2-UNBLOCK_CONSIST_PORT: Unblocking FastEthernet0/48 on VLAN0999. Port consistency restored. DSW1-Cat3560# Apr 2 18:51:14.466: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560#sh int trunk Port Mode Encapsulation Status Native vlan Fa0/1 on 802.1q trunking 999 Fa0/2 on 802.1q trunking 999 Fa0/47 on 802.1q trunking 999 Fa0/48 on 802.1q trunking 999 ...
Látható, hogy amint a native vlan-t átállítottam, működésbe lépett a Spanning Tree. Ennek oka:
%SPANTREE-2-RECV_PVID_ERR : Received BPDU with inconsistent peer vlan id [dec] on [chars] [chars].
Explanation The specified interface has received an SSTP BPDU that is tagged with a VLAN ID that does not match the VLAN ID on which the BPDU was received. This condition occurs when the native VLAN is not consistently configured on both ends of a 802.1Q trunk.
Akkor állt helyre a rend, amikor a másik switchen is beállítottam a native vlan-t (999).
Következőnek tegyük helyre a VTP-t:
- domain: TSHOOT
- password: cisco
- version: 2
DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560#conf t Enter configuration commands, one per line. End with CNTL/Z. DSW1-Cat3560(config)#vtp domain TSHOOT Changing VTP domain name from LAB2 to TSHOOT DSW1-Cat3560(config)#vt Apr 2 18:53:22.829: %SW_VLAN-6-VTP_DOMAIN_NAME_CHG: VTP domain name changed to TSHOOT. DSW1-Cat3560(config)#vtp password cisco Setting device VLAN database password to cisco DSW1-Cat3560(config)#vtp version 2 VTP mode already in V2. DSW1-Cat3560(config)#^Z DSW1-Cat3560# Apr 2 18:53:32.165: %SYS-5-CONFIG_I: Configured from console by tshoot on console DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560#sh vtp status VTP Version : running VTP2 Configuration Revision : 0 Maximum VLANs supported locally : 1005 Number of existing VLANs : 7 VTP Operating Mode : Server VTP Domain Name : TSHOOT VTP Pruning Mode : Enabled VTP V2 Mode : Enabled VTP Traps Generation : Disabled MD5 digest : 0xB4 0x65 0xFD 0xCF 0xE5 0x3C 0xE1 0xA5 Configuration last modified by 192.168.1.1 at 4-2-12 18:49:55 Local updater ID is 192.168.1.1 on interface Vl1 (lowest numbered VLAN interface found) ASW1-Cat3550# ASW1-Cat3550#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1-Cat3550(config)#vtp domain TSHOOT Changing VTP domain name from LAB to TSHOOT ASW1-Cat3550(config)#vtp version 2 VTP mode already in V2. ASW1-Cat3550(config)#vtp password cisco Setting device VLAN database password to cisco ASW1-Cat3550(config)#vtp mode client Setting device to VTP CLIENT mode. ASW1-Cat3550(config)#^Z ASW1-Cat3550# ASW1-Cat3550# ASW1-Cat3550# 07:55:54: %SYS-5-CONFIG_I: Configured from console by tshoot on console
Próbáljuk ki, hozzunk létre egy VLAN2-t DSW1-en, és nézzük meg, lefrissül -e:
DSW1-Cat3560(config)#vlan 20 DSW1-Cat3560(config-vlan)#name VTP_TESZT DSW1-Cat3560(config-vlan)#^Z DSW1-Cat3560# ASW1-Cat3550#sh vl b VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active 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, Fa0/25, Fa0/26 Fa0/27, Fa0/28, Fa0/29, Fa0/30 Fa0/31, Fa0/32, Fa0/33, Fa0/34 Fa0/35, Fa0/36, Fa0/37, Fa0/38 Fa0/39, Fa0/40, Fa0/41, Fa0/42 Fa0/43, Fa0/44, Fa0/45, Fa0/46 Gi0/1, Gi0/2 2 VTP_TESZT active 50 VLAN0050 active 999 NATIVE active 1002 fddi-default act/unsup 1003 trcrf-default act/unsup 1004 fddinet-default act/unsup 1005 trbrf-default act/unsup ASW1-Cat3550# ASW1-Cat3550# ASW1-Cat3550#
Csináljunk egy Layer-2-es LACP EtherChannel-t, ahol DSW1 az active, ASW2 a passive (Fa0/1 és Fa0/2 portokkal):
DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560#conf t Enter configuration commands, one per line. End with CNTL/Z. DSW1-Cat3560(config)#int fa0/1 DSW1-Cat3560(config-if)#channel-protocol lacp DSW1-Cat3560(config-if)#channel-group 1 mode active Creating a port-channel interface Port-channel 1 Apr 2 18:55:11.478: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down DSW1-Cat3560(config-if)#int fa0/2 DSW1-Cat3560(config-if)#channel-protocol lacp DSW1-Cat3560(config-if)# Apr 2 18:55:19.472: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up DSW1-Cat3560(config-if)#channel-group 1 mode active DSW1-Cat3560(config-if)#^Z DSW1-Cat3560#sh etherchan Apr 2 18:55:31.887: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Apr 2 18:55:32.072: %SYS-5-CONFIG_I: Configured from console by tshoot on console DSW1-Cat3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SD) LACP Fa0/1(I) Fa0/2(I)
I = Individual, azaz nem vesz részt a port-channelben. Azért, mert ASW1-et még nem konfiguráltam fel.
ASW1-Cat3550# ASW1-Cat3550# ASW1-Cat3550# ASW1-Cat3550#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1-Cat3550(config)#int fa0/1 ASW1-Cat3550(config-if)#channel-protocol lacp AASW1-Cat3550(config-if)#channel-group 1 mode passive Creating a port-channel interface Port-channel 1 ASW1-Cat3550(config-if)# 07:58:51: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down ASW1-Cat3550(config-if)#int fa0/2 ASW1-Cat3550(config-if)#channel-protocol lacp ASW1-Cat3550(config-if)# 07:59:03: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up ASW1-Cat3550(config-if)# 07:59:04: %LINK-3-UPDOWN: Interface Port-channel1, changed state to up 07:59:05: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel1, changed state to up ASW1-Cat3550(config-if)##channel-group 1 mode passive ASW1-Cat3550(config-if)# ASW1-Cat3550(config-if)#^Z ASW1-Cat3550# ASW1-Cat3550# 07:59:09: %SYS-5-CONFIG_I: Configured from console by tshoot on console ASW1-Cat3550# ASW1-Cat3550# ASW1-Cat3550#sh etherc ASW1-Cat3550#sh etherchannel suim mm Number of channel-groups in use: 1 Number of aggregators: 1 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SU) LACP Fa0/1(P) Fa0/2(P)
P = részt vesz a port-channelben.
Csináljunk egy Layer3-as Etherchannelt, Fa0/47-tel és Fa0/48-cal, 10.0.0.0 /30-as IP tartománnyal:
DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560#conf t Enter configuration commands, one per line. End with CNTL/Z. DSW1-Cat3560(config)#int fa0/48 DSW1-Cat3560(config-if)#no switchport DSW1-Cat3560(config-if)#channe Apr 2 18:58:51.201: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/47, changed state to down DSW1-Cat3560(config-if)#channel-protocol pagp DSW1-Cat3560(config-if)#channel-group 10 mode on Creating a port-channel interface Port-channel 10 Apr 2 18:59:06.980: %LINK-3-UPDOWN: Interface Port-channel10, changed state to up Apr 2 18:59:07.986: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel10, changed state to up DSW1-Cat3560(config-if)#exit DSW1-Cat3560(config)#int po10 DSW1-Cat3560(config-if)#ip add 10.0.0.1 255.255.255.252 DSW1-Cat3560(config-if)#^Z DSW1-Cat3560#conf Apr 2 18:59:19.135: %SYS-5-CONFIG_I: Configured from console by tshoot on console DSW1-Cat3560#conf t Enter configuration commands, one per line. End with CNTL/Z. DSW1-Cat3560(config)#int fa0/48 DSW1-Cat3560(config-if)#no sw DSW1-Cat3560(config-if)#c Apr 2 18:59:25.669: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/48, changed state to down DSW1-Cat3560(config-if)#channel.p Apr 2 18:59:27.683: %LINK-3-UPDOWN: Interface FastEthernet0/48, changed state to up Apr 2 18:59:28.689: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/48, changed state to up DSW1-Cat3560(config-if)#channel-proto DSW1-Cat3560(config-if)#channel-protocol pagp DSW1-Cat3560(config-if)#channel-group 10 mode on DSW1-Cat3560(config-if)#^Z DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560#s Apr 2 18:59:41.272: %SYS-5-CONFIG_I: Configured from console by tshoot on console DSW1-Cat3560#sh ether DSW1-Cat3560#sh etherchannel summ DSW1-Cat3560#sh etherchannel summary Flags: D - down P - bundled in port-channel I - stand-alone s - suspended H - Hot-standby (LACP only) R - Layer3 S - Layer2 U - in use f - failed to allocate aggregator M - not in use, minimum links not met u - unsuitable for bundling w - waiting to be aggregated d - default port Number of channel-groups in use: 2 Number of aggregators: 2 Group Port-channel Protocol Ports ------+-------------+-----------+----------------------------------------------- 1 Po1(SU) LACP Fa0/1(P) Fa0/2(P) 10 Po10(RU) - Fa0/47(P) Fa0/48(P)
Tehát:
- no switchport: ezzel a paranccsal Layer3 interface-re konfigoljuk a portot
- a többi ugyanúgy megy, mint L2-es EtherChannel-nél, kivéve, hogy a Po10-nek IP-t adunk.
Működik a ping is:
DSW1-Cat3560#ping 10.0.0.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/8 ms DSW1-Cat3560# DSW1-Cat3560# DSW1-Cat3560#
A topológia a labor végére a következőképpen változott:
