12-14-2005 06:36 AM - edited 03-03-2019 01:08 AM
Hi All
I have configured ports 1 -5 on a single 3750G 24TS
switch for dynamic link aggregation using LACP. To these ports are connected a single apple xserve with 5 bonded ethernet interfaces, the bonded int is manually assigned a single ip address.
I can ping any node connected to the 3750 switch from the Xserve, and vice versa.
However, i have connected the 3750 to a 3500XL stack consisting of 4 3524XL switches via gigabit port 23 on the 3750 to a 100mbps port on a 3524XL stack member. And i'm finding that i can't ping any device on the remote stack from the xserve. But i can ping devices conencted to the stack from all other nodes on the 3750 switch. So it doesn't appear to be a problem with the uplink for non linkaggregated nodes.
In addition i cannot ping the xserve from the IOS command line on the 3750 eventhough i can ping all other nodes both on local and remote segments/switches. Here's my running config plus info on the port-channel i have configured (I've also noticed that port-channel 1 is
using the mac address of the switch itself - is this normal ?)
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Switch
!
!
switch 1 provision ws-c3750g-24ts
ip subnet-zero
!
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
!
!
interface Port-channel1
!
interface GigabitEthernet1/0/1
channel-group 1 mode active
!
interface GigabitEthernet1/0/2
channel-group 1 mode active
!
interface GigabitEthernet1/0/3
channel-group 1 mode active
!
interface GigabitEthernet1/0/4
channel-group 1 mode active
!
interface GigabitEthernet1/0/5
channel-group 1 mode active
!
interface GigabitEthernet1/0/6
!
interface GigabitEthernet1/0/7
!
interface GigabitEthernet1/0/8
!
interface GigabitEthernet1/0/9
!
interface GigabitEthernet1/0/10
!
interface GigabitEthernet1/0/11
!
interface GigabitEthernet1/0/12
!
interface GigabitEthernet1/0/13
!
interface GigabitEthernet1/0/14
!
interface GigabitEthernet1/0/15
!
interface GigabitEthernet1/0/16
!
interface GigabitEthernet1/0/17
!
interface GigabitEthernet1/0/18
!
interface GigabitEthernet1/0/19
!
interface GigabitEthernet1/0/20
!
interface GigabitEthernet1/0/21
!
interface GigabitEthernet1/0/22
!
interface GigabitEthernet1/0/23
!
interface GigabitEthernet1/0/24
!
interface GigabitEthernet1/0/25
!
interface GigabitEthernet1/0/26
!
interface GigabitEthernet1/0/27
!
interface GigabitEthernet1/0/28
!
interface Vlan1
ip address 10.x.x.x 255.255.252.0
!
ip classless
ip http server
!
!
control-plane
!
!
line con 0
line vty 5 15
!
end
Switch#
help much appreciated
Was
12-14-2005 07:46 AM
Just to follow up, the commands is have used to create the etherchannel were;
channel-protocol lacp
channel-group 1 mode active
12-14-2005 08:10 AM
According to your description this appears to be a single flat network in vlan 1 . The only thing I can think of is to make sure all your addressing is correct and everyone is in the same address range governed by the 255.255.252.0 mask .
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