Backup link

My customer needs to have backup lines for their branch offices. They have installed on each branch office a router (RV042 or TL ER6120 or ASA5505), on each branch office are installed 2 fiber optic transceiver from diferent ISPs. At headquarter they have installed a cisco 892FSP. 892 WAN1 interface is connected to a layer 3 switch (on that switch are connected many Patch cords connected to many ONTs), WAN2 is connected to a catalyst 2960 switch with a SFP connected. Customer needs to have backup link between headquarter and branch offices. Can anyone help?

Need help!!!

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Configure backup link

My customer needs to have backup lines for their branch offices. They have installed on each branch office a router (RV042 or TL ER6120 or ASA5505), on each branch office are installed 2 fiber optic transceiver from diferent ISPs. At headquarter they have installed a cisco 892FSP. 892 WAN1 interface is connected to a layer 3 switch (on that switch are connected many Patch cords connected to many ONTs), WAN2 is connected to a catalyst 2960 switch with a SFP connected. Customer needs to have backup link between headquarter and branch offices. Can anyone help on cisco 892 configuration please?

Hi
Your connectivity/setup is not clear however if your query is to configure backup data link you can follow the below link for details:
http://www.cisco.com/en/US/docs/routers/access/800/860-880-890/software/configuration/guide/backup_ps9572_TSD_Products_Configuration_Guide_Chapter.html#wp1015543
If you still have query please share your topology.
Thanks & Regards
Sandeep

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I have ISDN BRI 4 lines Interface card installed in my company router cisco 2821, I want to configure all 4 BRI lines as an backup link of 512Kbps with same ISP which is directly connected on Serial0/2/0 with 1mbps bandwidth. If my Serial link become down. ALL 4 BRI group dail same ISP with full loaded 512kbps bandwith link.
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waiting you reply....

Respected Sir,
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Version:11g
I was going through the scripts in the post Two Questions on RETENTION POLICY
When you have a Differential Incremental backup strategy and When you run level 0 and level 1 backup scripts through different cronjobs from Sunday to saturday, during recovery, How will RMAN identify all these level 1 backups and its parent level 0 backup as one unit ? In the level 0 and its subsequent level 1 backup scripts, i don't see a clause which links level 0 backup and its subsequent level 1 backups?

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Edited by: tychos on Nov 1, 2009 1:51 AM

DMVPN as Backup link to MPLS

Hi,
i want to implement DMVPN to one of our branch as a fail over link if the MPLS point to point is down.
The MPLS VPN is working fine but due to SP faults we are experiencing frequent link downs.so i want to place a dsl router at branch and configure DMVPN to our existing HUB router.
i am configuring branch router as a spoke to HUB router R3 with rip so when the MPLS which using eigrp goes down , then DMVPN link should be up depending upon AD but, my doubt is if again MPLS link gets up, will it switchover to MPLS from DMVPN.
here is the topology
Here is the configurations for HO,HUB and Branch Routers
******** HO ********
interface Tunnel102
description " Tunnel HO-Br3"
bandwidth 2048
ip address 10.10.0.10 255.255.255.252
tunnel source 172.33.1.18
tunnel destination 172.33.33.18
interface FastEthernet0/0
description "HO-LAN"
ip address 192.168.1.10 255.255.255.0
duplex auto
speed auto
interface FastEthernet0/1
description " Connection MPLS SP"
ip address 172.33.1.18 255.255.255.252
duplex full
speed 100
router eigrp 200
redistribute ospf 10 metric 512 600 100 100 1500
network 10.10.0.8 0.0.0.3
no auto-summary
router ospf 10
log-adjacency-changes
redistribute eigrp 200 subnets
redistribute bgp 65350 subnets
network 192.168.12.0 0.0.0.255 area 0
router bgp 65350
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bgp redistribute-internal
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neighbor 172.31.3.17 remote-as 65400
no auto-summary
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crypto isakmp policy 10
encr 3des
authentication pre-share
group 2
lifetime 3600
crypto isakmp key welc0me address 0.0.0.0 0.0.0.0
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crypto ipsec profile cisco
set security-association lifetime seconds 7200
set transform-set strong
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ip address 172.20.20.1 255.255.255.0
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ip mtu 1400
ip nhrp authentication welc0me
ip nhrp map multicast dynamic
ip nhrp network-id 250
ip tcp adjust-mss 1360
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delay 100
tunnel source GigabitEthernet0/1
tunnel mode gre multipoint
tunnel key 100
tunnel protection ipsec profile cisco
interface GigabitEthernet0/1
ip address 74.99.128.25 255.255.255.240
ip flow ingress
ip flow egress
duplex auto
speed auto
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version 2
redistribute ospf 10 metric 5
network 172.20.0.0
no auto-summary
ip route 0.0.0.0 0.0.0.0 74.99.128.17
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crypto isakmp policy 1
encr 3des
authentication pre-share
group 2
lifetime 3600
crypto isakmp key welc0me address 74.99.128.25
crypto ipsec transform-set strong esp-3des
crypto ipsec profile cisco
set security-association lifetime seconds 7200
set transform-set strong
interface Tunnel10
bandwidth 1024
ip address 172.20.20.2 255.255.255.0
no ip redirects
ip mtu 1400
ip nhrp authentication
ip nhrp map multicast 74.99.128.25
ip nhrp map 172.20.20.1 74.99.128.25
ip nhrp network-id 250
ip nhrp holdtime 300
ip nhrp nhs 172.20.20.1
ip nhrp registration no-unique
ip tcp adjust-mss 1360
no ip split-horizon
delay 1000
tunnel source FastEthernet4
tunnel destination 74.99.128.25
tunnel key 100
tunnel protection ipsec profile cisco
interface vlan 1
description " HWIC-DSL Link"
ip addresss dhcp
ip virtual-reassembly in
duplex auto
speed auto
router rip
version 2
network 172.20.0.0
network 192.168.50.0
no auto-summary
ip route 74.99.128.25 255.255.255.255 192.168.1.1
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bandwidth 2048
ip address 10.10.0.9 255.255.255.252
tunnel source 172.33.33.18
tunnel destination 172.33.1.18
interface FastEthernet0/0
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ip address 192.168.50.5 255.255.255.0
duplex auto
speed auto
interface FastEthernet0/1
bandwidth 2048
ip address 172.33.33.18 255.255.255.252
duplex auto
speed auto
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network 10.10.0.8 0.0.0.3
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Hi,
i am running eigrp over MPLS and i want the dmvpn as failover, so configured rip as it's AD is higher and it will be preferred only when the primary is down, but i want to make sure , it switches over to primary as soon as MPLS comes up.
if not DMVPN then canyou please suggest me anyother way to get over it...

How can i change traffic form one link to other link automatic !!!

I am providing two links to my client, one link has bandwidth 15 Mpbs and other link has 10 Mpbs (through same router but ports are different) via BGP. My client want that if his primary link goes down then his backup link become 25 Mpbs, vice versa.
I have studied Cisco event manger, but want to know that there is any other way to do this task. can it be done by route-map ???
Many thanks in advance !!!

Hi there's a few ways to do this ,your using BGP so you could set the primary link to have a better local preference than the backup link , you can also use a route-map to specify which subnets to allow all traffic or just some subnets or alter 1 of BGPs other attributes as well , you could send them a less preferred(higher) MED for the backup link
or
you could use ip sla with tracking of specific routes across the primary and the use a route-map to set the ip next-hop if the route becomes unavailable and add the verify-availability on it to make sure the link you move too can definitely send traffic across the backup and reach the new verified route
EEM can be difficult to setup i would avoid it for something like this when there are easier options available
If this helps please mark as correct
Mark

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call list, email account settings, IE favorites and history etc...
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Hi,
We are planning to implement DMVPN (phase 3) through internet to connect 100 plus locations (including business critical locations) . These locations are located around the globe including embargoed countries. However , while browsing through various case studies of DMVPN implementation, we understand the solution is used a backup link and not primary link for many of companies. Would like to know from you anyone that if the solution is successful as primary link as well. Kindly advise..
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Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
Case studies using DMVPN as a backup, are more due, I believe, to the question of reliability of the "Internet" rather than the DMVPN technology, itself.
I used to work within an international company with offices all over the world. Usually we had a private WAN link and Internet VPN link to each site. Although Internet VPN was "sold" to management as a lower cost backup/secondary, we usually treated the two links equally (as they had about the same bandwidths). I saw very little difference in performance between the two technologies. Regarding reliability, in 1st world countries, reliability was about the same. In 3rd work countries, VPN actually has a slight edge (because if was often newer infrastructure and a primary focus for the country's build outs [i.e. everyone wants Internet access]).

EM Fails. Will scheduled backups be affected?

Hello.
I had a problem to our EM DBControl. It keeps on failing / or dying (issuing command emctl status dbconsole shows EM is not running). So i tried to drop all the repositories and recreate it. (+emca -create dbcontrol db -repos recreate -cluster+) Unfortunately, I wasn't able to complete it because it put our database to quiesce so i just kill the emca and unquiesce the DB. I planned to schedule it on low transactions. Now weird thing is when i try to use EM again the following day, its woking and its not failing anymore.
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Lost my phone numbers, how do i get them back with a backup?

how do you work the back up so i can get my notes and phone numbers back?

This explains:
http://support.apple.com/kb/HT4946
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Hi,
I have a design issue with a WAN network. I have decided to use dual cloud dual hub single tier DMVPN topology (ref. to http://www.cisco.com/application/pdf/en/us/guest/netsol/ns171/c649/ccmigration_09186a008075ea98.pdf - "Dynamic Multipoint VPN (DMVPN) Design Guide"). I have tested in lab 2 hubs and 3 spokes, applying the mentioned technology. Everything is OK, when the primary hub fails, there is only 1-3 seconds loss (3 pings).
The problem is that each spoke and hub will have 2 service providers for WAN - primary and backup. I am still wondering which design is better and more stable to implement - using more DMVPN clouds (for the backup service provider network) or creating static IPSEC GRE tunnels in the backup links?
Is there a guide for this case?
What is the best practice in this case?
Thanks in advance,
Mladen

Dynamic spoke-to-spoke requires your spoke routers to have mGRE tunnel interfaces. If you ever have a spoke which sources 2 tunnels from the same physical interface, you have a problem: how to resolve which tunnel is an incoming NHRP request for?
My DMVPN is a bit different in that the crypto is GETVPN on the physical interface. There is a crypto-map applied to the physical interface and it has 2 entries which correspond to the GETVPN crypto-groups for each tunnel.
I resolved this issue by making one of the 2 tunnels on each spoke router mGRE and the 2nd one point to point. the mGRE tunnel is preferred as primary (we use eBGP through the tunnel, so routes received through the mGRE tunnel are local-pref'd high and we AS path prepend routes advertised out the point-to-point tunnel)
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Backup link

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