H323 redundancy between routers

I have 2 2800 series routers with E1 circuits on both, i can place calls on both gateways without any issues. If i pull the E1 circuit on one router, but still have IP connectivity to it from the callmanager, the route list route group will not forward outing calls to the second gateway. I'm wondering if this level of redundancy is going to work with H323. By the way if i loose ip conectivity with the first gateway the route list route group does force the outbond calls to the next H323 gateway and all works fine. Any help would be good.
dave white

Hi, why don't you use MGCP instead H.323? it's the best way to have redundancy.
http://www.cisco.com/en/US/tech/tk1077/technologies_configuration_example09186a00801ad22f.shtml

Similar Messages

  • MGCP and H323 redundancy calling issue......

    I have call Manager 7.1 and there is 2 MGCP gateways registered on the CUCM. Each gateway has 1 PRI line and this setup is working fine. Now I am adding new PRI line for redundancy prospect. So I had added the new E1 card for each gateway and then I have created the H323 trunk between the Voice gateway and CUCM. I have configured the Route Group and Route list for MGCP and H323.If primary MGCP is down call auto routed to H323.
    Now when MGCP is down, call is auto routed to H323 and its hitting on the proper PRI port but call is not getting established and incoming is working fine.
    Kindly find the isdn debug for your reference:
    DEL-2921-ROUTER(config)#
    DEL-2921-ROUTER(config)# debug isdn q931
    Jan 31 16:52:34.655: ISDN Se0/0/0:15 Q931: Ux_DLRelInd: DL_REL_IND received from L2
    Jan 31 16:52:44.655: ISDN Se0/0/0:15 Q931: Ux_DLRelInd: DL_REL_IND received from L2
    Jan 31 16:52:47.267: ISDN Se0/2/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x0, Calling num 6272
    Jan 31 16:52:47.267: ISDN Se0/2/0:15 Q931: Sending SETUP callref = 0x00AC callID = 0x802D switch = primary-net5 interface = User
    Jan 31 16:52:47.267: ISDN Se0/2/0:15 Q931: TX -> SETUP pd = 8 callref = 0x00AC
    Sending Complete
    Bearer Capability i = 0x8090A3
    Standard = CCITT
    Transfer Capability = Speech
    Transfer Mode = Circuit
    Transfer Rate = 64 kbit/s
    Channel ID i = 0xA9839F
    Exclusive, Channel 31
    Calling Party Number i = 0x0081, '6272'
    Plan:Unknown, Type:Unknown
    Called Party Number i = 0x80, '09821444335'
    Plan:Unknown, Type:Unknown
    Jan 31 16:52:47.295: ISDN Se0/2/0:15 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x80AC
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    Jan 31 16:52:54.675: ISDN Se0/0/0:15 Q931: Ux_DLRelInd: DL_REL_IND received from L2
    DEL-2921-ROUTER(config)#
    THANKS IN ADVANCE.....

    Hi Rupesh,
    The cause code "Idenfied channel does not exist" means:- This code indicates a call attempted on a channel that is not configured on the far end. This could happen if you are using a fractional PRI
    Please ask to remote end for the number of channels configured and you can configure that number of channels accordingly at your end.
    In CUCM 7.1 there is a service parameter which will help you to use the number of channel as per your requirement and rest of the channels you can mark it as busy so that CUCM won't select that channel.
    Service Parameters > Call Manager > Advanced > CTRL-F > "maintenance"
    In that you will find "Change B-Channel Maintenance Status" and mark channel as 1 which you don't want you to use.
    For further information regarding this parameter you can click on that parameter and you will get more information.
    And to enable above mentioned parameter, go to MGCP Gateway configuration page and check the box "Enable Status Poll"
    Regards,
    Nishant Savalia

  • ASR ZBFW Config sync between routers?

    I have been reading about, and will try to set up, Firewall Stateful Interchassis Redundancy for my edge ASR-1002-X routers.  I have found the Config guide for that feature here and one of the prereqs is "The active device and the standby device must have the same Cisco IOS XE Zone-Based Firewall configuration," which makes sense.
    What I can't find is how to keep the ZBFW config "in sync" between the routers. 
    I am assuming there is an automated way to do this, a la the ASA failover pair configuration sync process (a loose example, I grant), but I cannot find how to automate the sync.  I am hoping this can be done for ONLY the ZBFW config, as the routers have different BGP configs, etc.
    If there is not, does anyone know what happens while one is making changes to the ZBFW config on one or the other routers?  Does this break the state sync?
    Thanks for any help.
    Paul

    Hello Karien,
    Not sure I get the question..
    The definition you are looking I guess is this one:
    A router can only inspect inter-VRF traffic if traffic must enter or leave a VRF through an interface to cross to a different VRF. If traffic is routed directly to another VRF, there is no physical interface where a firewall policy can inspect traffic, so the router is unable to apply inspection.
    Based on that I would say that on each VRF there will need to be a dedicated security zone applied,
    I will try to run a lab real quick tomorrow and get back to u,
    Remember to rate all of the helpful posts. That's as important as a Thanks.
    Julio Carvajal Segura

  • Bandwidth between Routers

    I am being told that between cisco routers if there is only one user they only can take up to 50% of the bandwidth, not 100%....and when a second user comes on they could take the other 50%...and then they get bumped down as more users come on line....is this corret? If it is why can't the first user take all 100% and then get bumped down as a second user comes on line. I am trying to find the documentation on this so I can understand it better. I am told this is only for Cisco routers.
    Thanks,
    Mike

    By default there is no limitation on a users use of bandwidth.
    A user can use 100% of a line and if a second user comes along the traffic is not in any way split 50-50. It will depend on lots of factors as to how the split is done.
    Cisco does have something called fair-queue on slower lines but this just make interactive traffic a little more preferred but does not have a lot of effect on the bandwidth each user gets.

  • Q: Best Method for TCL scripts to pass info between routers?

    I want to have routers tell each other how busy their links are.  Whats the best method to pass information between TCL scripts running on different routers?
    Thanks!
    Tim

    Likely the easiest approach is to use SNMP traps from one router to another.  See https://supportforums.cisco.com/message/3713232#3713232 for an example.

  • E4200/E3200 in bridge mode...Guest access works, but does not roam between routers...any ideas?

    I have installed wireless in my church...main router is E4200 in the office set up as follows:
    IP: 192.168.0.1
    Subnet: 255.255.255.0
    DHCP enabled (Range = 192.168.0.4-192.168.0.103)
    Guest network enabled
    Static DNS (for content filtering)
    NAT: Enabled
    Second router E3200 (in bridge mode) - connected LAN to WAN
    IP: 192.168.0.2
    Subnet: 255.255.255.0
    Guest Network enabled
    DHCP (obviously disabled)
    Static DNS (for content filtering)
    NAT: Enabled
    Third router E3200 (in bridge mode) - Connected LAN to WAN
    IP 192.168.0.3
    Subnet: 255.255.255.0
    Guest network enabled
    DHCP (obviously disabled)
    Static DNS (for content filtering)
    NAT: Enabled
    The 2 routers in Bridge mode are connected to a 16-port unmanaged switch (with other PCs, etc.), which is then plugged into the main router in Port 1.
    SSIDs on all 3 routers are exactly the same for both main and Guest networks.
    The main network works flawlessly.  The router in the office hands out IPs in the 192.168.0.XX range and you can wander throughout the church and maintain a persistent Internet connection.  File and print access works fine too from anywhere in the building.
    For the Guest network, you can set up a laptop next to each router, obtain an IP address, reach the logon page and surf the Internet without issue.  So, the Guest Network works fine from each router.
    However, if you wander around the church while on the Guest network (such as with a smart phone), the following happens:
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    -You get a different IP from each router.  On the E3200's in Bridge mode, you get a 192.168.33.XX address.  Additionally, the gateway is 192.168.33.1.  On the E4200 (main router) you get a 192.168.3.XX IP and a gateway of 192.168.3.1.  
    -As a result of getting different IPs, the smart phone becomes confused and generally won't connect to the Internet.
    So, it looks like each router maintains a separate list of who has entered the correct password to get onto the Guest network.  Additionally, it appears as if each of the 2 routers, supposedly in Bridge mode, is still handing out IP addresses on the Guest Network, rather than deferring to the router in the office like they do for the main network.
    I have seen a lot of postings about how to put routers into Bridge mode and problems with the Guest Network, but posts that I've seen point to the Guest network not working at all, as opposed to this issue where it works; the bridged routers, though, continue to like to hand out IP addresses on it, making wandering around the church while connected to the Internet not possible while connected to the Guest network.
    Anyone else experience as similar situation?  Any possible solutions out there?
    Thanks!
    -Gil
    Solved!
    Go to Solution.

    I do understand what you were trying to do here since you would like to have only 2 SSIDs (main & guest) for perhaps easy connectivity. The reason why you were not having problems getting online wirelessly when you were connected to the main network it’s because the computer was connected to only one DHCP server since the 2 bridge routers were just acting as a switch or a passthrough device. Now with guest network access it is a different scenario, a guest network is a virtual network meaning to say it’s like your having another router embedded on your router. Since it is a virtual network, then it does not follow the parameters of the main network, hence even if the router was set to bridge mode those routers will still have their own ip address of either 192.168.33.1 or 192.168.3.1.

  • H323 Redundancy

    Hello,
    I have on my network 2 different h323 (non cisco) gateway in two different route groups, also I have a route list with the two route groups, when I make calls that point to that route list the callmanager does not search in the second route group if the first one returns busy, the only way to make the call go to the second gateway is disconnect the first one. From the cco I have read than if i put the Stop Routing on User Busy Flag -> False in service parameters, it should resolve the problem, but did not. This parameter is a inter-cluster-trunk parameter.
    Can any one provide me some help on this issue.
    Thanks

    Hello,
    The first gateway is returning release_comp with a busy cause.
    I will provide the ccm detail trace for h225

  • MPLS issues with redundant PE routers

    Hello,
    i'd like to set up an mpls lab. the layout of the gear is attached (mpls.jpg) At site A i have to PE router R4 and R6 which should have knowledge of the network 10.0.129.0/24 from site B. Router R1 is configured as a route reflector. the configuration of R1, R4, R5 and R6 are attached as well.
    with the configuration
    Routing Table R6
    O E2     10.0.129.0 [110/1] via 172.16.128.9, 00:04:37, FastEthernet0/1.200
    Routing table R4
    B        10.0.129.0 [200/11] via 150.1.5.5, 00:05:00
    a traceroute shows the path goes through R4 instead direkt through R1
    Tracing the route to 10.0.129.1
    VRF info: (vrf in name/id, vrf out name/id)
      1 172.16.128.9 4 msec 0 msec 4 msec
      2 172.16.128.1 [MPLS: Labels 19/29 Exp 0] 96 msec 100 msec 96 msec
      3 150.1.0.2 [MPLS: Labels 19/29 Exp 0] 68 msec 64 msec 68 msec
      4 172.16.129.9 [MPLS: Label 29 Exp 0] 64 msec 64 msec 64 msec
      5 172.16.129.10 40 msec *  36 msec
    show bgp vpnv4 unicast all 10.0.129.0 indicates an error
    Rack1R6# show bgp vpnv4 unicast all 10.0.129.0
    BGP routing table entry for 200:1:10.0.129.0/24, version 63
    Paths: (1 available, best #1, table CENTRAL, RIB-failure(17) - next-hop mismatch)
      Not advertised to any peer
      Local
        150.1.5.5 (metric 67) from 150.1.1.1 (150.1.1.1)
          Origin incomplete, metric 11, localpref 100, valid, internal, best
          Extended Community: RT:200:1 OSPF DOMAIN ID:0x0005:0x000000C80200
            OSPF RT:0.0.0.0:3:0 OSPF ROUTER ID:172.16.129.242:0
          Originator: 150.1.5.5, Cluster list: 150.1.1.1
          mpls labels in/out nolabel/29
    Rack1R4#show bgp vpnv4 unicast all 10.0.129.0
    BGP routing table entry for 200:1:10.0.129.0/24, version 146
    Paths: (1 available, best #1, table CENTRAL)
      Not advertised to any peer
      Local
        150.1.5.5 (metric 67) from 150.1.1.1 (150.1.1.1)
          Origin incomplete, metric 11, localpref 100, valid, internal, best
          Extended Community: RT:200:1 OSPF DOMAIN ID:0x0005:0x000000C80200
            OSPF RT:0.0.0.0:3:0 OSPF ROUTER ID:172.16.129.242:0
          Originator: 150.1.5.5, Cluster list: 150.1.1.1
          mpls labels in/out nolabel/29
    any ideas what i have to do in order to have a redundant path towards site B?
    thanks in advanced
    Alex

    Hi Alex,
    I think you still have redundancy via R6, but BGP route on R6 is not getting installed in routing table because it is having OSPF route with lesser AD value. If R4 goes down, R6 will loose OSPF route for 10.0.129.0/24 coming from R4, install BGP route ,redistribute this to OSPF and will advertise it to SW4.
    Routing Table R6
    O E2     10.0.129.0 [110/1] via 172.16.128.9, 00:04:37, FastEthernet0/1.200
    Rack1R6# show bgp vpnv4 unicast all 10.0.129.0
    BGP routing table entry for 200:1:10.0.129.0/24, version 63
    Paths: (1 available, best #1, table CENTRAL, RIB-failure(17) - next-hop mismatch)
      Not advertised to any peer
      Local
        150.1.5.5 (metric 67) from 150.1.1.1 (150.1.1.1)
          Origin incomplete, metric 11, localpref 100, valid, internal, best
          Extended Community: RT:200:1 OSPF DOMAIN ID:0x0005:0x000000C80200
            OSPF RT:0.0.0.0:3:0 OSPF ROUTER ID:172.16.129.242:0
          Originator: 150.1.5.5, Cluster list: 150.1.1.1
          mpls labels in/out nolabel/29

  • Difference between routers and/or Whats better?

    Hey, I currently have a WRT160N V2, I had it for a couple of years..
    I been googling and searching for new and better routers but I dont know which one to choose.
    I look here http://homestore.cisco.com/en-us/products/linksys_stcVVcatId551966VVviewcat.htm
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    I hope I can find one thats way better than the one I have for atleast under $120 
    Solved!
    Go to Solution.

    I recommend you getting the EA2700 for $99.99. click here
    By the way if you are willing to add $30, it would be better to get the EA3500. click here

  • Redundant routers with IPSEC failover

    For the failover between routers I plan to use HSRP:
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    Hi,
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    http://www.cisco.com/en/US/docs/ios/sec_secure_connectivity/configuration/guide/sec_vpn_ha_enhance_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1056265
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    So basically you will end up with a stateless IPSec High Availaibility setup.
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  • The difference of the IEEE802.1x Auth between Cisco Routers and Catalyst switches

    Hello
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    Many time in interviews asked comaprison between cisco  routers and switches that i was answerless bcoz i dont have much knowledge about that.Can anyone provide me the compariosin sheet of the same.how are the cisco devices differ with each other how much Bandwidth each routres support and Etc...
    Ummmm ... The most common question I get is "what is the difference between a router and a switch".
    However, if you get a question like this, then my impression to this line of questioning are:
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  • Inter chassis Redundancy License

    Hi,
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    Spooster IT Services

    Hello Leo Laohoo
    I know Rahul Chhabra. But my answer is not there where you told me to go.
    As you told him to use HSRP, we don't want to use this protocol. Because this is configured on the interface level. If we will use this protocol we need the same number of ip addresses as the interfaces we are having on the routers. Thats why we prefer Inter-chassis Hardware Redundancy between 2 ASR 1002 routers, in this case we require only two IP addresses for the both the routers.
    Now i want to know that we want to enable only routing on the ASR routers, for this do we need any license or not. If yes then which one license we have to purchase?
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  • Redundancy in Cisco ASR1002

    Hi,
    our company is going to purchase a Cisco ASR 1002 and we need to make it Redundant.
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    As Inter-chassis Redundancy means that if our Active chassis will goes down than our Secondary chassis takes over.
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    Spooster IT Services

    I know this thing about HSRP, but I want to know that is their any other method of inter-chassis Redundancy like the ASA failover in which all the information is Replicated to Secondary ASA while failover.

  • Using WCCPv2 for inter-site redundancy

    Hello,
    I would like to use WCCP to enable dynamic redundancy between Web proxies located in two data centers separated by an L3 link.
    Is this possible?
    Thanks in advance,
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    Hello Dan,
    I thought this (your concept) would be fine as well but the WCCP configuration guide for the Catalyst 4500 switch states that the cache engines should not be separated by a Layer 3 hop. That's the part that confuses me.
    http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/46sg/configuration/guide/wccp.html#wp1000978
    Restrictions for WCCP
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  • ASR 1002 inter-chassis redundancy

    Can anyone tell me which licence is required to create inter-chassis redundancy between 2 ASR 1002 routers?
    I don't need NAT/ Firewall features. I want redundancy only for ip data. As i have read on Cisco sites it is mentioned that we require licence for NAT/Firewall features. If i don't require these features is there any need for any particular licence or not?
    Regards,
    Mukesh Kumar
    Network Engineer
    Spooster IT Services

    Hello Leo Laohoo
    I know Rahul Chhabra. But my answer is not there where you told me to go.
    As you told him to use HSRP, we don't want to use this protocol. Because this is configured on the interface level. If we will use this protocol we need the same number of ip addresses as the interfaces we are having on the routers. Thats why we prefer Inter-chassis Hardware Redundancy between 2 ASR 1002 routers, in this case we require only two IP addresses for the both the routers.
    Now i want to know that we want to enable only routing on the ASR routers, for this do we need any license or not. If yes then which one license we have to purchase?
    If not then please tell me the link from where have you seen that we don't require any link.
    Regards,
    Mukesh Kumar
    Network Engineer
    Spooster IT Services

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