Witam,
Tak sobię labuję do CCNP switch i trafiłem na taki problem, otóż:
topologia 3550 --- 2950
problem: na 3550 porty 23 i 24 zbundlowane w etherchannel z protokolem lacp na 2950 1 i 2 no i za nic połaczenie 3550/24 - 2950/2 nie chce 'wstać' shutdown i no shutdown od razu dają interface down, poniżej konfigi - nie potrafię tego rozgryźć:
3550:
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 3550SW
!
enable secret 5 $1$ifS2$73bmzEUGBEzGfc1plkotG0
!
no aaa new-model
clock timezone GMT 2
ip subnet-zero
!
!
!
!
no file verify auto
!
spanning-tree mode rapid-pvst
spanning-tree extend system-id
spanning-tree vlan 1,10,20,30,40,999 priority 4096
!
vlan internal allocation policy ascending
!
interface Port-channel1
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport mode trunk
switchport nonegotiate
!
interface Port-channel2
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport mode trunk
switchport nonegotiate
!
interface FastEthernet0/1
switchport mode dynamic desirable
!
interface FastEthernet0/2
switchport access vlan 10
switchport mode dynamic desirable
!
interface FastEthernet0/3
switchport access vlan 10
switchport mode dynamic desirable
!
interface FastEthernet0/4
switchport access vlan 10
switchport mode dynamic desirable
!
interface FastEthernet0/5
switchport access vlan 10
switchport mode dynamic desirable
!
interface FastEthernet0/6
switchport access vlan 20
switchport mode dynamic desirable
!
interface FastEthernet0/7
switchport access vlan 20
switchport mode dynamic desirable
!
interface FastEthernet0/8
switchport mode dynamic desirable
!
interface FastEthernet0/9
switchport mode dynamic desirable
!
interface FastEthernet0/10
switchport access vlan 999
switchport mode dynamic desirable
!
interface FastEthernet0/11
switchport mode dynamic desirable
!
interface FastEthernet0/12
switchport mode dynamic desirable
!
interface FastEthernet0/13
description UPLINK DO 2950L
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport mode trunk
switchport nonegotiate
channel-group 2 mode on
!
interface FastEthernet0/14
description UPLINK DO 2950L
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport mode trunk
switchport nonegotiate
channel-group 2 mode on
!
interface FastEthernet0/15
switchport access vlan 30
switchport mode dynamic desirable
!
interface FastEthernet0/16
switchport access vlan 30
switchport mode dynamic desirable
!
interface FastEthernet0/17
switchport access vlan 30
switchport mode dynamic desirable
!
interface FastEthernet0/18
switchport access vlan 30
switchport mode dynamic desirable
!
interface FastEthernet0/19
switchport access vlan 30
switchport mode dynamic desirable
!
interface FastEthernet0/20
switchport mode dynamic desirable
!
interface FastEthernet0/21
switchport mode dynamic desirable
!
interface FastEthernet0/22
switchport mode dynamic desirable
!
interface FastEthernet0/23
description UPLINK DO 2950H
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport mode trunk
switchport nonegotiate
channel-protocol lacp
channel-group 1 mode active
!
interface FastEthernet0/24
description UPLINK DO 2950H
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport mode trunk
switchport nonegotiate
channel-protocol lacp
channel-group 1 mode active
!
interface GigabitEthernet0/1
switchport mode dynamic desirable
!
interface GigabitEthernet0/2
switchport mode dynamic desirable
!
interface Vlan1
ip address 10.0.0.2 255.255.255.0
!
ip classless
ip http server
!
!
control-plane
!
!
line con 0
logging synchronous
line vty 0 4
exec-timeout 0 0
password cisco
logging synchronous
login
line vty 5 15
exec-timeout 0 0
password cisco
logging synchronous
login
!
ntp clock-period 17180189
ntp server 212.244.36.227
end
show etherchannel port
Channel-group listing:
----------------------
Group: 1
----------
Ports in the group:
-------------------
Port: Fa0/23
------------
Port state = Up Mstr Assoc In-Bndl
Channel group = 1 Mode = Active Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs.
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/23 SA bndl 32768 0x1 0x1 0x13 0x3D
Partner's information:
LACP port Oper Port Port
Port Flags Priority Dev ID Age Key Number State
Fa0/23 SA 32768 0009.b7a9.6d40 11s 0x1 0x1 0x3D
Age of the port in the current state: 00d:00h:04m:38s
Port: Fa0/24
------------
Port state = Down Not-in-Bndl
Channel group = 1 Mode = Active Gcchange = -
Port-channel = null GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs.
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/24 SA down 32768 0x1 0x0 0x14 0x45
Age of the port in the current state: 00d:01h:20m:07s
2950:
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 2950higher
!
enable secret 5 $1$y4fW$PFWjV1.GlFT82ATcKyhKU0
!
clock timezone GMT 2
ip subnet-zero
!
!
!
spanning-tree mode rapid-pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
interface Port-channel1
switchport trunk native vlan 999
switchport mode trunk
switchport nonegotiate
no ip address
flowcontrol send off
!
interface FastEthernet0/1
switchport trunk native vlan 999
switchport mode trunk
switchport nonegotiate
no ip address
channel-group 1 mode active
channel-protocol lacp
!
interface FastEthernet0/2
switchport trunk native vlan 999
switchport mode trunk
switchport nonegotiate
no ip address
channel-group 1 mode active
channel-protocol lacp
!
interface FastEthernet0/3
switchport access vlan 10
switchport mode access
switchport nonegotiate
no ip address
!
interface FastEthernet0/4
switchport access vlan 10
switchport mode access
switchport nonegotiate
no ip address
!
interface FastEthernet0/5
switchport mode access
switchport nonegotiate
no ip address
!
interface FastEthernet0/6
switchport mode access
switchport nonegotiate
no ip address
!
interface FastEthernet0/7
switchport mode access
switchport nonegotiate
no ip address
!
interface FastEthernet0/8
switchport mode access
switchport nonegotiate
no ip address
!
interface FastEthernet0/9
switchport mode access
switchport nonegotiate
no ip address
!
interface FastEthernet0/10
switchport access vlan 30
switchport mode access
switchport nonegotiate
no ip address
!
interface FastEthernet0/11
switchport mode access
switchport nonegotiate
no ip address
!
interface FastEthernet0/12
switchport mode access
switchport nonegotiate
no ip address
!
interface GigabitEthernet0/1
no ip address
!
interface GigabitEthernet0/2
no ip address
!
interface Vlan1
ip address 10.0.0.4 255.255.255.0
no ip route-cache
!
ip http server
!
!
line con 0
line vty 0 4
exec-timeout 0 0
password cisco
logging synchronous
login
line vty 5 15
exec-timeout 0 0
password cisco
logging synchronous
login
!
ntp clock-period 17179981
ntp server 212.244.36.227
end
sh ether port:
Channel-group listing:
-----------------------
Group: 1
----------
Ports in the group:
-------------------
Port: Fa0/1
------------
Port state = Up Mstr In-Bndl
Channel group = 1 Mode = Active Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs.
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/1 SA bndl 32768 0x1 0x1 0x1 0x3D
Partner's information:
LACP port Oper Port Port
Port Flags Priority Dev ID Age Key Number State
Fa0/1 SA 32768 0015.2b95.4580 5s 0x1 0x13 0x3D
Age of the port in the current state: 00d:00h:05m:38s
Port: Fa0/2
------------
Port state = Down Not-in-Bndl
Channel group = 1 Mode = Active Gcchange = -
Port-channel = null GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs.
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/2 SA down 32768 0x1 0x0 0x2 0x45
Age of the port in the current state: 00d:01h:21m:44s
problem z etherchannel
Re: problem z etherchannel
Port pierwszy z bundla pokazuje ze jest Masterem i w stanie UP. Sprawdz co z drugim portem, zapewne to kwestia zcrossowania patchcordu, ale agregacja powinna wstac nawet przy jednym czlonku. Ew. pokaz 'sh int PoX' i 'sh int Fa0/X i Y'.