Fwd: Some questions about Link Aggregation and Failover
Damien Fleuriot
ml at my.gd
Thu Mar 8 09:00:34 UTC 2012
>From your switch, run the following tests:
core1.drt.hi-media#test etherchannel load-balance interface port-channel
2 ip 1.2.3.4 5.6.7.8
Would select Gi1/1/1 of Po2
core1.drt.hi-media#test etherchannel load-balance interface port-channel
2 ip 1.2.3.4 5.6.7.9
Would select Gi2/1/1 of Po2
core1.drt.hi-media#test etherchannel load-balance interface port-channel
2 ip 1.2.3.4 5.6.7.10
Would select Gi2/1/1 of Po2
Of course, you'll want to adjust with your own servers and PC IP addresses.
On 3/8/12 9:33 AM, bo wang wrote:
> ---------- Forwarded message ----------
> From: bo wang <wowopla at gmail.com>
> Date: 2012/3/8
> Subject: Re: Some questions about Link Aggregation and Failover
> To: noc at hdk5.net
>
>
> Hello:
> Please see the picture 1 that is my test before.Doing 2 group in
> c3750.When I use PC and server2 to connect server1 fpt server for
> download. I find the server1 just use 1 port of lagg, other ports
> don't work.
> Then I change my test , picture2 is showed. I do only 1 group in
> c3750 for server1. And do the same test.I find that there are two
> ports of lagg work.The lagg0 top speed can be 140MB/s (server2 speed
> is 100MB/S, PC speed is 40MB/s) It can increase top speed.
> So what can I do for doinig two group in a switch?
>
>
>
> 2012/3/8 bo wang <wowopla at gmail.com>:
>> Sorry,I can't understand what your meaning.
>>
>> Switch#show etherchannel
>> Channel-group listing:
>> ----------------------
>>
>> Group: 1
>> ----------
>> Group state = L2
>> Ports: 2 Maxports = 16
>> Port-channels: 1 Max Port-channels = 16
>> Protocol: LACP
>> Minimum Links: 0
>>
>> Group: 2
>> ----------
>> Group state = L2
>> Ports: 2 Maxports = 16
>> Port-channels: 1 Max Port-channels = 16
>> Protocol: LACP
>> Minimum Links: 0
>>
>>
>> Switch#show etherchannel detail
>> Channel-group listing:
>> ----------------------
>>
>> Group: 1
>> ----------
>> Group state = L2
>> Ports: 2 Maxports = 16
>> Port-channels: 1 Max Port-channels = 16
>> Protocol: LACP
>> Minimum Links: 0
>> Ports in the group:
>> -------------------
>> Port: Gi1/0/1
>> ------------
>>
>> 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
>> Gi1/0/1 SA bndl 32768 0x1 0x1 0x102 0x3D
>>
>> Partner's information:
>>
>> LACP port Admin Oper Port Port
>> Port Flags Priority Dev ID Age key Key Number State
>> Gi1/0/1 SA 32768 0010.18c0.af20 24s 0x0 0x250 0x3 0x3D
>>
>> Age of the port in the current state: 12d:22h:41m:09s
>>
>> Port: Gi1/0/2
>> ------------
>>
>> 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
>> Gi1/0/2 SA bndl 32768 0x1 0x1 0x103 0x3D
>>
>> Partner's information:
>>
>> LACP port Admin Oper Port Port
>> Port Flags Priority Dev ID Age key Key Number State
>> Gi1/0/2 SA 32768 0010.18c0.af20 26s 0x0 0x250 0x4 0x3D
>>
>> Age of the port in the current state: 12d:22h:41m:15s
>>
>> Port-channels in the group:
>> ---------------------------
>>
>> Port-channel: Po1 (Primary Aggregator)
>>
>> ------------
>>
>> Age of the Port-channel = 12d:22h:41m:21s
>> Logical slot/port = 10/1 Number of ports = 2
>> HotStandBy port = null
>> Port state = Port-channel Ag-Inuse
>> Protocol = LACP
>> Port security = Disabled
>>
>> Ports in the Port-channel:
>>
>> Index Load Port EC state No of bits
>> ------+------+------+------------------+-----------
>> 0 00 Gi1/0/1 Active 0
>> 0 00 Gi1/0/2 Active 0
>>
>> Time since last port bundled: 12d:22h:41m:17s Gi1/0/1
>>
>> Group: 2
>> ----------
>> Group state = L2
>> Ports: 2 Maxports = 16
>> Port-channels: 1 Max Port-channels = 16
>> Protocol: LACP
>> Minimum Links: 0
>> Ports in the group:
>> -------------------
>> Port: Gi1/0/13
>> ------------
>>
>> Port state = Up Mstr Assoc In-Bndl
>> Channel group = 2 Mode = Active Gcchange = -
>> Port-channel = Po2 GC = - Pseudo port-channel = Po2
>> 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
>> Gi1/0/13 SA bndl 32768 0x2 0x2 0x10E 0x3D
>>
>> Partner's information:
>>
>> LACP port Admin Oper Port Port
>> Port Flags Priority Dev ID Age key Key Number State
>> Gi1/0/13 SA 32768 0010.18c0.af7c 28s 0x0 0x250 0x3 0x3D
>>
>> Age of the port in the current state: 12d:22h:39m:21s
>>
>> Port: Gi1/0/14
>> ------------
>>
>> Port state = Up Mstr Assoc In-Bndl
>> Channel group = 2 Mode = Active Gcchange = -
>> Port-channel = Po2 GC = - Pseudo port-channel = Po2
>> 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
>> Gi1/0/14 SA bndl 32768 0x2 0x2 0x10F 0x3D
>>
>> Partner's information:
>>
>> LACP port Admin Oper Port Port
>> Port Flags Priority Dev ID Age key Key Number State
>> Gi1/0/14 SA 32768 0010.18c0.af7c 29s 0x0 0x250 0x4 0x3D
>>
>> Age of the port in the current state: 12d:22h:39m:21s
>>
>> Port-channels in the group:
>> ---------------------------
>>
>> Port-channel: Po2 (Primary Aggregator)
>>
>> ------------
>>
>> Age of the Port-channel = 12d:22h:39m:26s
>> Logical slot/port = 10/2 Number of ports = 2
>> HotStandBy port = null
>> Port state = Port-channel Ag-Inuse
>> Protocol = LACP
>> Port security = Disabled
>>
>> Ports in the Port-channel:
>>
>> Index Load Port EC state No of bits
>> ------+------+------+------------------+-----------
>> 0 00 Gi1/0/13 Active 0
>> 0 00 Gi1/0/14 Active 0
>>
>> Time since last port bundled: 12d:22h:39m:22s Gi1/0/14
>>
>>
>>
>>
>> 2012/3/8 Al Plant <noc at hdk5.net>:
>>> bo wang wrote:
>>>>
>>>> Thank your for reply.
>>>> First,I think the Link Aggregation can't support too much ports
>>>> aggregation.So I change the configure, just get together two
>>>> ports.Below are configuration information of c3750:
>>>
>>>
>>>
>>> ??? > Switch#show eth 1 sum Check your eth discriptor this is for Linux is
>>> not for FreeBSD use ed0 or other FreeBSD
>>>
>>>
>>>
>>>> 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 Gi1/0/1(P) Gi1/0/2(P)
>>>>
>>>>
>>>> Switch#show lacp neighbor
>>>> Flags: S - Device is requesting Slow LACPDUs
>>>> F - Device is requesting Fast LACPDUs
>>>> A - Device is in Active mode P - Device is in Passive mode
>>>>
>>>> Channel group 1 neighbors
>>>>
>>>> Partner's information:
>>>>
>>>> LACP port Admin Oper Port
>>>> Port
>>>> Port Flags Priority Dev ID Age key Key Number
>>>> State
>>>> Gi1/0/1 SA 32768 0010.18c0.af20 4s 0x0 0x250 0x3
>>>> 0x3D
>>>> Gi1/0/2 SA 32768 0010.18c0.af20 4s 0x0 0x250 0x4
>>>> 0x3D
>>>>
>>>> Channel group 2 neighbors
>>>>
>>>> Partner's information:
>>>>
>>>> LACP port Admin Oper Port
>>>> Port
>>>> Port Flags Priority Dev ID Age key Key Number
>>>> State
>>>> Gi1/0/13 SA 32768 0010.18c0.af7c 1s 0x0 0x250 0x3
>>>> 0x3D
>>>> Gi1/0/14 SA 32768 0010.18c0.af7c 1s 0x0 0x250 0x4
>>>> 0x3D
>>>>
>>>>
>>>> Switch#show lacp neighbor detail
>>>> Flags: S - Device is requesting Slow LACPDUs
>>>> F - Device is requesting Fast LACPDUs
>>>> A - Device is in Active mode P - Device is in Passive mode
>>>>
>>>> Channel group 1 neighbors
>>>>
>>>> Partner's information:
>>>>
>>>>
>>>> Partner Partner Partner
>>>> Port System ID Port Number Age Flags
>>>> Gi1/0/1 32768,0010.18c0.af20 0x3 13s SA
>>>>
>>>> LACP Partner Partner Partner
>>>> Port Priority Oper Key Port State
>>>> 32768 0x250 0x3D
>>>>
>>>> Port State Flags Decode:
>>>> Activity: Timeout: Aggregation: Synchronization:
>>>> Active Long Yes Yes
>>>>
>>>> Collecting: Distributing: Defaulted: Expired:
>>>> Yes Yes No No
>>>>
>>>> Partner Partner Partner
>>>> Port System ID Port Number Age Flags
>>>> Gi1/0/2 32768,0010.18c0.af20 0x4 14s SA
>>>>
>>>> LACP Partner Partner Partner
>>>> Port Priority Oper Key Port State
>>>> 32768 0x250 0x3D
>>>>
>>>> Port State Flags Decode:
>>>> Activity: Timeout: Aggregation: Synchronization:
>>>> Active Long Yes Yes
>>>>
>>>> Collecting: Distributing: Defaulted: Expired:
>>>> Yes Yes No No
>>>>
>>>> Channel group 2 neighbors
>>>>
>>>> Partner's information:
>>>>
>>>>
>>>> Partner Partner Partner
>>>> Port System ID Port Number Age Flags
>>>> Gi1/0/13 32768,0010.18c0.af7c 0x3 15s SA
>>>>
>>>> LACP Partner Partner Partner
>>>> Port Priority Oper Key Port State
>>>> 32768 0x250 0x3D
>>>>
>>>> Port State Flags Decode:
>>>> Activity: Timeout: Aggregation: Synchronization:
>>>> Active Long Yes Yes
>>>>
>>>> Collecting: Distributing: Defaulted: Expired:
>>>> Yes Yes No No
>>>>
>>>> Partner Partner Partner
>>>> Port System ID Port Number Age Flags
>>>> Gi1/0/14 32768,0010.18c0.af7c 0x4 16s SA
>>>>
>>>> LACP Partner Partner Partner
>>>> Port Priority Oper Key Port State
>>>> 32768 0x250 0x3D
>>>>
>>>> Port State Flags Decode:
>>>> Activity: Timeout: Aggregation: Synchronization:
>>>> Active Long Yes Yes
>>>>
>>>> Collecting: Distributing: Defaulted: Expired:
>>>> Yes Yes No No
>>>>
>>>> 2012/3/7 bo wang <wowopla at gmail.com>:
>>>>>
>>>>> Hello:
>>>>> Recently I want to do Link Aggregation for increasing the
>>>>> speed. I use a Cisco 3750 Switche and two IBM Server R with BSD
>>>>> 9.0 .I do link aggregation According to this page.
>>>>> http://www.freebsd.org/doc/en/books/handbook/network-aggregation.html
>>>>> I use LACP .But when i have done ,the link aggregation only can
>>>>> do Failover .It cann't increase the speed. What is the
>>>>> problem?Detailed configuration as follows
>>>>>
>>>>> in the BSD9.0 /etc/rc.conf
>>>>> hostname="bbc04"
>>>>> ifconfig_bce2="up"
>>>>> ifconfig_bce3="up"
>>>>> ifconfig_bce4="up"
>>>>> ifconfig_bce5="up"
>>>>> ifconfig_bce6="up"
>>>>> ifconfig_bce7="up"
>>>>> cloned_interfaces="lagg0"
>>>>> ifconfig_lagg0="laggproto loadbalance laggport bce2 laggport bce3
>>>>> laggport bce4 laggport bce5 laggport bce6 laggport bce7"
>>>>> ipv4_addrs_lagg0="172.16.60.64/16"
>>>>> defaultrouter="172.16.0.1"
>>>>> sshd_enable="YES"
>>>>> pureftpd_enable="YES"
>>>>> # Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable
>>>>> dumpdev="NO"
>>>>>
>>>>> the Cisco 3750 configure
>>>>> interface range gigabitEthernet 1/0/1-6
>>>>> channel-proto lacp
>>>>> channel-group 1 mode active
>>>>>
>>>>>
>>>>> interface range gigabitEthernet 1/0/13-18
>>>>> channel-proto lacp
>>>>> channel-group 2 mode active
>>>>
>>>> _______________________________________________
>>>>
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>>>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>>>> To unsubscribe, send any mail to
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>>>>
>>>
>>>
>>> --
>>>
>>> ~Al Plant - Honolulu, Hawaii - Phone: 808-284-2740
>>> + http://hawaiidakine.com + http://freebsdinfo.org +
>>> + http://aloha50.net - Supporting - FreeBSD 7.2 - 8.0 - 9* +
>>> < email: noc at hdk5.net >
>>> "All that's really worth doing is what we do for others."- Lewis Carrol
>>>
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