Redundancy with GWIA
We currently have the following environment:
1. Groupwise 2012 server #1 on one server, with GWIA, MTA, POA,
WebAccess on that server. Primary MX record points to this server. On
our dsl internet connection
2. Groupwise 2012 server #2, GWIA, MTA, on that server. Secondary MX
record points to this server. On our cable internet connection.
Currently, For incoming purposes, email normally comes in via the
primary MX record to server #1. If it is not responding, email incoming
traffic goes via the secondary MX record to server #2. m This is automatic.
However, I am not certain that the outgoing emails have automatic
redundancy. If the GWIA on server #1 cannot process outgoing mail
simply because the dsl internet connection it uses is down, does the
outgoing emails automatically get routed to server #2 to go out that
GWIA. Or does that automatic rerouting occur only if the GWIA on server
#1 is actually down.
I had read that the redundancy routing of the GWIA to server #2 did not
work on GW6, but did work on GW7. Is that the case and does it work
automatically for GW2012 in the instance where the GWIA on server #1 is
still up but is not able to connect to the internet because the internet
connection is down.
We want to have automatic outgoing GWIA redundancy in addition to the
incoming GWIA redundancy.
Cliff
On 1/7/2015 1:15 AM, Massimo Rosen wrote:
> Hi.
>
> Am 07.01.2015 um 05:18 schrieb Clifford Wiernik:
>>
>> However, I am not certain that the outgoing emails have automatic
>> redundancy. If the GWIA on server #1 cannot process outgoing mail
>> simply because the dsl internet connection it uses is down, does the
>> outgoing emails automatically get routed to server #2 to go out that
>> GWIA. Or does that automatic rerouting occur only if the GWIA on server
>> #1 is actually down.
>
> The latter, but even that only when correctly configured. By default,
> there is no outbound redundancy whatsoever.
>
>> I had read that the redundancy routing of the GWIA to server #2 did not
>> work on GW6, but did work on GW7.
>
> I don't think that's true either. I'm not even sure if it was available
> in GW8, or just came in 2012.
>
> Full outbound redeundancy, as in the GWIA is up but it's internet line
> down is out of the scope of groupwise. This would better be done at the
> router level.
>
> CU,
> The latter, but even that only when correctly configured. By default,
> there is no outbound redundancy whatsoever.
What would be the proper configuration to provide for this outbound
redundancy if the GWIA itself is actually down?
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N+1 redundancy with 2504-HA
Hello,
I have question regarding N+1 redundancy with 2504-HA WLC.
Can I use 2504-HA unit for H+1 redundancy? SSO is not needed
I have two wireless network:
1. With WLC 5508 with about 40 AP(1262), all them are A regulatory domain
2. With WLC 2504, with about 30 Mesh AP(1552), all of them are E regulatory domain
I plan to use two 2504-HA units for backups, one for network with WLC5508 and second for network with WLC2504.
In case N+1 redundancy is management with Prime mandatory ?Hi,
Better to use same model and same software.
Case1: You have 5508WLC
Solution from my side: You must buy a another WLC with HA SKU license(Zero AP license). This wlc can work as N+1 and AP SSO as well as Client SSO but with higher version of code(7.5 or higher).
Case2: You have 2504 WLC
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http://www.cisco.com/c/en/us/td/docs/wireless/technology/hi_avail/N1_High_Availability_Deployment_Guide/N1_HA_Overview.html
More info:
http://www.cisco.com/c/en/us/products/collateral/wireless/aironet-1130-ag-series/qa_c67-714540.pdf
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Revision: 12883
Revision: 12883
Author: [email protected]
Date: 2009-12-12 15:53:50 -0800 (Sat, 12 Dec 2009)
Log Message:
Remove the skin classes from the halo theme project to avoid redundancy with the airframework/framework swcs.
QE notes: No
Doc notes: No
Bugs: SDK-24293
Reviewer: Glenn
Tests run: Checkintests, smattering of Halo and AIR mustella tests
Is noteworthy for integration: Yes
Ticket Links:
http://bugs.adobe.com/jira/browse/SDK-24293
Modified Paths:
flex/sdk/trunk/frameworks/projects/framework/src/FrameworkClasses.as
flex/sdk/trunk/frameworks/projects/halo/build.xml
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flex/sdk/trunk/frameworks/projects/framework/src/mx/skins/halo/WindowBackground.as
Removed Paths:
flex/sdk/trunk/frameworks/projects/halo/assets/
flex/sdk/trunk/frameworks/projects/halo/src/HaloClasses.as
flex/sdk/trunk/frameworks/projects/halo/src/mx/skins/ -
Nexus 7000 Switch Fabric Redundancy with Fab-2 ?
Hi all,
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Two important problems with GWIA
I have two major problems in GroupWise 8 SP2 with the latest HP.
First, something I arose at another facility with HP2 and that in this new server with HP3 still happens, the file is lost gwac.db every 5 days at 0 hours exactly. Something I could fix with a script manager to create a backup file every 15 minutes to restore it if it is deleted. While it solves is not neat and not find what you send to delete the file.
And second, that only happens to me with the HP3 is with respect to uid.run, each time I stop the service leaves gwia file as if it was running. My solution was to use the same script gwac.db that by lowering the lift service and delete the file uid.run, but obviously this is not neat.I'm not certain about the second issue but the first is a shoe in...
Look at the working directory and you have set that to be the
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This should also have happened in NetWare, but there is a bug that
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T
On Mon, 21 May 2012 16:06:01 GMT, juanzele
<[email protected]> wrote:
>
>I have two major problems in GroupWise 8 SP2 with the latest HP.
>
>First, something I arose at another facility with HP2 and that in this
>new server with HP3 still happens, the file is lost gwac.db every 5 days
>at 0 hours exactly. Something I could fix with a script manager to
>create a backup file every 15 minutes to restore it if it is deleted.
>While it solves is not neat and not find what you send to delete the
>file.
>
>And second, that only happens to me with the HP3 is with respect to
>uid.run, each time I stop the service leaves gwia file as if it was
>running. My solution was to use the same script gwac.db that by lowering
>the lift service and delete the file uid.run, but obviously this is not
>neat. -
Redundancy with dual nic servers
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Hi all!
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Dai
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How to implement redundant with 1 CE router to 2 MPLS service providers
Dear all,
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PS: Current configuration : 3727 bytes
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname Router
boot-start-marker
boot system flash c3825-entservicesk9-mz.123-11.T7.bin
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logging buffered 4096 debugging
logging monitor xml
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ip subnet-zero
ip cef
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no spanning-tree vlan 4
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interface GigabitEthernet0/1
description connect to VDC MPLS$ETH-WAN$
mtu 1480
ip address 222.x.x.66 255.255.255.252
ip flow ingress
ip flow egress
service-policy output SDM-QoS-Policy-1
ip route-cache flow
duplex auto
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media-type rj45
fair-queue 64 256 256
no cdp enable
interface FastEthernet0/2/0
switchport access vlan 2
no cdp enable
interface FastEthernet0/2/3
description ToTBToverFPT
switchport access vlan 5
no cdp enable
interface Vlan2
description CONNECT TO MPLS_VDC
ip address 192.168.201.9 255.255.248.0
interface Vlan5
description Connect to HoChiMinhCity
ip address 172.16.1.5 255.255.255.252
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
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ip route 192.168.0.0 255.255.248.0 222.255.33.65
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So with our system, do we only have one solution like this:
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Hi all,
We are going to implement high availabilty in 5508 WLC with version of 7.3.101 . We will be using Prime infrastructure 1.2 for monitoring purpose.
With Prime , whether we can monitor and manage redundant WLC also or only active WLC?...
Thanks for your help.......I just know from experience. You can only GUI/ssh into the primary WLC when you enable AP-SSO. So once the pairs are in HA, that is it.... You have only the primary WLC IP address available. You learn things the hard way sometimes because there are things not documented.
Sent from Cisco Technical Support iPhone App -
Hi Forum,
is it possible to operate 2 vWLC (with version 8.0) and configure them to work redundant (in any mode A/A, A/P or cold stand-by) as you could with a 5500 WLC?
TIA
AlexanderHi Alexander,
Yes that is possible, but not in an hitless fashion like SSO with the 5500 controllers. The access-points need to determine that their primary controller is down which will take at least 10~15 seconds (if you are going to use fast AP heartbeats). And all the clients need to re-authenticate. To answer your question; just configure an primary and secondary WLC on the access-point.
With the virtual WLC your access-points have to run in FlexConnect mode which has some drawbacks (just like the virtual WLC itself, comparing it to an physical WLC). But depending on your deployment, the virtual controller can be much cheaper and lift on the HA infrastructure in the already existing hypervisor layer in your datacenter.
It is also possible to do "local authentication" on FlexConnect AP's when the connection to the controller has been lost, which can be handy when the WAN link is instable. Maybe this feature is an better solution that just add an second WLC in the datacenter far away. -
Hi, I will implement a WLAN network with AP1130AG and WLC 2125. If I understand right the whole traffic to/from the APs (data + management) will be first encapsulated in a LWAPP tunnel to/from the WLC ? Then, the WLC will forward the different traffic VLANs via a 802.1Q trunk to the network. Is it correct ? If so, the WLC is a true single point of failure ! What will happen if the WLC get out-of-service ? What is the impact on existing client sessions and new ones ? How will a redundant WLC 2125 work with the primary (active/standby with HSRP, load balancing)? What are the best practices in such a network ?
ThanksHi Jean-Pascal,
In the WLC world this is how an AP is covered in case one WLC fails. It is not without some "downtime" in case of failure but both Controllers are active. You have to keep in mind that an AP can only be registered to one WLC at a time so this is the best that you can do :) When one WLC fails the AP then has to re-register with the backup, this is not a completly seemless process.
This has some really good info;
WLAN Controller Failover for Lightweight Access Points Configuration Example
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008064a294.shtml#c4
Hope this helps!
Rob -
Ace redundancy with different software licences
Hi,
We have 4710 with ACE-4710-1F-K9.
1G Bundle: Includes ACE 4710 Hardware, 1 Gbps Throughput, 5,000 SSL TPS, 500 Mbps Compression, 5 Virtual Devices, 50 Application Acceleration Connection License, Embedded Device Manager
We have another 4710 with ACE-4710-2F-K9.
2G Bundle: Includes ACE 4710 Hardware, 2 Gbps Throughput, 7,500 SSL TPS, 1Gbps Compression, 5 Virtual Devices, 50 Application Acceleration Connection License, Embedded Device Manager
Is that possible to make redundancy (FT GROUP) with 2 devices has different software bundles?Hello-
When you initially setup the ACE's in an FT pair, they initially figure out who is master based on priority, then they check if the licenses that they each have installed are the same. If there is a mismatch, FT will continue to check the configuration and will eventually go into a "standby warm" state. It will not config-sync the startup or running configurations until you install the correct license and toggle config sync.
This is what yo uwould see:
ACE-A/Admin# show ft group 1 status
FT Group : 1
Configured Status : in-service
Maintenance mode : MAINT_MODE_OFF
My State : FSM_FT_STATE_ACTIVE
Peer State : FSM_FT_STATE_STANDBY_WARM
Peer Id : 1
No. of Contexts : 1
Running cfg sync status : Detected license mismatch with peer, disabling running-config auto sync
Startup cfg sync status : Detected license mismatch with peer, disabling running-config auto sync
If you disable config sync, it will still stay in a warm state and ignore the license mismatch:
ACE-A/Admin# show ft group 1 status
FT Group : 1
Configured Status : in-service
Maintenance mode : MAINT_MODE_OFF
My State : FSM_FT_STATE_ACTIVE
Peer State : FSM_FT_STATE_STANDBY_WARM
Peer Id : 1
No. of Contexts : 1
Running cfg sync status : Sync disabled by CLI.
Startup cfg sync status : Sync disabled by CLI.
It is not recommended to run with 2 different licenses because it is possible that you failover and don't have enough resources to carry the traffic that the active was running - however - if you disable configuration sync, it will allow you to do such.
Regards,
Chris Higgins -
I have 1 ISP-A line in SiteA
Peer : 10.10.10.10
I have many S2S Tunnels between my SiteA - RemoteSites, i have redundancy when there is a hardware failure in SiteA, but if the ISP link fails there
there is no backup.
If i take another ISP-B i will get diffrerent IP Adress than ISP-A, but my RemoteSites are not agreening on configuring Second Peer as backup.
So what is the way where the VPN tunnel should work with ISP-B with same Peer(ISP-A:10.10.10.10) if the ISP-A is donw.Hi,
I see sorry. I haven't read through this article properly so apologies if it doesn't cover what I say it does.
But I believe you can also (again IOS version dependant) track ICMP availability. E.g. can I ping www.cisco.com? If yes its up if not fail over. You can configure timers etc. Obviously this adds a slight overhead in terms of traffic.
http://www.cisco.com/en/US/docs/ios/12_3t/12_3t4/feature/guide/gtfhrp.html
The other way I believe you could go about it is configuring the two routers with IPsec High availability and detect the dead peers with DPD. I don't have any config etc to hand I am afraid but a search on IPsec High Availability may turn something up.
Thanks -
[ios pw redundancy with xr mc-lag termination]
hi, all:
first of all, thanks in advance and please take a look at the attached diagram.
i'm trying to setup a pseudowire redundancy setup between an ME3800 and two ASR9000s that build a mlacp etherchannel towards a cat4500, 4500-2. when primary pseudowire is up, everything works as expected. the problem is that, when you cause a switchover scenario from the primary asr9k-1 (say by shutting down the link to the 4500-2) to the secondary asr9k-2, traffic does not pass from one end of the pw to the other. if we bring up the failed link back up, primary pw works.
all 'show' commands checkout and pw switches over as expected. as a test, i have a 3rd asr9k connected in parallel to the ME3800 and we have no problem with that. when we cause the exact same failure scenario, the primary pw switches over to the secondary and everything works exactly like i would expect. traffic passes in both pri and stby pws when using the parallel asr9k.
as you will be able to see from attached-configs, the pw's from ME3800 and asr9k are a little different. ME3800 pw is port-based and asr9k pw is vlan-based, but since both primary pws work i see no obvious problem with that.
now, i know both ends of the mc-lag work, because the asr9k pw redundancy setup works.
if i build a single pw (no redundancy) from ME3800 to asr9k-1 connecivity works AND if i build a single pw from me3800 to asr9k-2 on same exact vlan, connecivity works also.
hopefully, one of you will take the time to look at configs and let me know if you see something wrong (i think with the ME3800 config). please keep in mind that everything works perfectly when working with asr9k pw redundancy (xr on both ends of pw)
c.
============
ME3800 (pw-redundancy)
3800#show run | section pseudowire
pseudowire-class mpls
encapsulation mpls
status peer topology dual-homed
! tried it without above status command, didn't work either.
3800#show run int g0/24
Building configuration...
Current configuration : 175 bytes
interface GigabitEthernet0/24
no switchport
no ip address
xconnect 207.x.y.9 1100 encapsulation mpls pw-class mpls
backup peer 207.x.y.17 1101 pw-class mpls
end
3800#
3800#show xconnect all
Legend: XC ST=Xconnect State S1=Segment1 State S2=Segment2 State
UP=Up DN=Down AD=Admin Down IA=Inactive
SB=Standby HS=Hot Standby RV=Recovering NH=No Hardware
XC ST Segment 1 S1 Segment 2 S2
------+---------------------------------+--+---------------------------------+--
UP pri ac Gi0/24:78(Ethernet) UP mpls 207.x.y.9:1100 UP
IA sec ac Gi0/24:78(Ethernet) UP mpls 207.x.y.17:1101 DN
3800_sw_pruebas#
============
ASR-3 (pw-redundancy)
RP/0/RSP1/CPU0:ASR-3#show run l2vpn
Sat Jun 15 09:07:10.183 CST
l2vpn
xconnect group PRUEBAS-XXXX
p2p ESC-MTZ
interface Bundle-Ether1000.28
neighbor 207.x.y.9 pw-id 1128
backup neighbor 207.x.y.17 pw-id 1228
RP/0/RSP1/CPU0:ASR-3#show l2vpn xconnect
Sat Jun 15 09:20:26.183 CST
Legend: ST = State, UP = Up, DN = Down, AD = Admin Down, UR = Unresolved,
SB = Standby, SR = Standby Ready
XConnect Segment 1 Segment 2
Group Name ST Description ST Description ST
PRUEBAS-XXXX
to4500-2 UP BE1000.28 UP 207.x.y.9 1128 UP
Backup
207.x.y.17 1228 DN
RP/0/RSP1/CPU0:ASR-3#
============
asr9k-1 (pw-termination)
RP/0/RSP0/CPU0:asr9k-1#show run l2vpn
Sat Jun 15 09:09:10.555 CST
l2vpn
pw-status
pw-class mpls
encapsulation mpls
redundancy
one-way
xconnect group PRUEBAS-XXXX
p2p toASR-3
interface Bundle-Ether1000.28
neighbor 207.x.y.1 pw-id 1128
p2p toME3800
interface Bundle-Ether1000.26
neighbor 207.x.y.30 pw-id 1100
RP/0/RSP0/CPU0:asr9k-1#show run redundancy
Sat Jun 15 09:09:16.659 CST
redundancy
iccp
group 1000
mlacp node 1
mlacp system mac 000d.000e.000f
mlacp system priority 1
member
neighbor 207.x.y.17
backbone
interface Bundle-Ether1
============
RP/0/RSP0/CPU0:asr9k-2#show run l2vpn
Sat Jun 15 09:13:39.908 CST
l2vpn
pw-status
pw-class mpls
encapsulation mpls
redundancy
one-way
xconnect group PRUEBAS-XXXX
p2p toASR-3
interface Bundle-Ether1000.28
neighbor 207.x.y.1 pw-id 1228
p2p toME3800
interface Bundle-Ether1000.26
neighbor 207.x.y.30 pw-id 1101
RP/0/RSP0/CPU0:asr9k-2#show run redundancy
Sat Jun 15 09:13:43.656 CST
redundancy
iccp
group 1000
mlacp node 2
mlacp system mac 000d.000e.000f
mlacp system priority 1
member
neighbor 207.x.y.9
backbone
interface Bundle-Ether1hard to tell where and why the traffic gets dropped if I were to guess the me might send traff still down the wrong PW
due to mac learning so it might need to get flushed.
I thought however that as part of the pw switchover the mac flush is instantiated.
either case you want to set up a stream of say 1000 pps so it is easy to verify and check the np counters to see where and why these paks are getting dropped and if it is the 9k or the me in that regard.
suspect a pw signaling and mac flushing issue here.
xander -
It was recommended that I try Firefox as it's more user friendly to accessing a variety of our sites of interest that aren't being facilitated by Safari. But your info says that the latest Firefox isn't compatible with my iBook..is there an older version that is, as, of course, I can't install any new software from intel onto this product ? I'm stuck with it as a browser & office work it seems, so I want to get the best out of that much!
Firefox 4 requires at least OS X 10.5 and an Intel Mac. There is a third party version of Firefox 4 that runs on OS X 10.4/10.5 and PPC Macs, for details see http://www.floodgap.com/software/tenfourfox
If you prefer, you can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html
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