Hi,   I have SSM configured in my MPLS core and for one of my customer too - VPN A. Multicast streaming is not woking for my customer.   I checked the (S,G) by using the cmd "sh ip mroute vrf VPNA". I am able to see (S,G) forming in only receiver PE and not in source PE.   I configured igmp join the interface of PE router where the receiver is connected. PE2#  interface GigabitEthernet1/1 description "CUST-A MULTICAST TESTING" ip vrf forwarding CUST-A ip address 40.40.40.1 255.255.255.252 ip pim sparse-mode ip igmp join-group 238.192.10.60 source 30.30.30.1 ip igmp version 3 end PE2# PE2#sh ip mroute vrf CUST-A IP Multicast Routing Table Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,        L - Local, P - Pruned, R - RP-bit set, F - Register flag,        T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,        X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,        U - URD, I - Received Source Specific Host Report,        Z - Multicast Tunnel, z - MDT-data group sender,        Y - Joined MDT-data group, y - Sending to MDT-data group,        V - RD & Vector, v - Vector Outgoing interface flags: H - Hardware switched, A - Assert winner Timers: Uptime/Expires Interface state: Interface, Next-Hop or VCD, State/Mode (*, 239.255.255.250), 02:28:52/00:02:02, RP 0.0.0.0, flags: SJC   Incoming interface: Null, RPF nbr 0.0.0.0   Outgoing interface list:     GigabitEthernet1/1, Forward/Sparse, 02:28:52/00:02:02 (30.30.30.1, 238.192.10.60), 02:29:33/00:02:08, flags: sLTI   Incoming interface: Tunnel0, RPF nbr 192.8.233.8   Outgoing interface list:     GigabitEthernet1/1, Forward/Sparse, 02:29:33/00:02:08 (*, 224.0.1.40), 02:29:33/00:02:45, RP 0.0.0.0, flags: DCL   Incoming interface: Null, RPF nbr 0.0.0.0   Outgoing interface list:     Tunnel0, Forward/Sparse, 02:29:33/00:02:45 PE2# I checked the Mtrace from PE1.It shows the below output. PE1X#mtrace vrf CUST-A 30.30.30.1 40.40.40.1 238.192.10.60 Type escape sequence to abort. Mtrace from 30.30.30.1 to 40.40.40.1 via group 238.192.10.60 in VRF CUST-A From source (?) to destination (?) Querying full reverse path... * switching to hop-by-hop: 0  40.40.40.1 -1  * 0.0.0.0 PIM/MBGP Admin. Prohibited [30.30.30.0/30] -2  * 0.0.0.0 PIM  [30.30.30.1/32] -2  30.30.30.1 PE1X# PE1#sh run int Gi2/6 Building configuration... Current configuration : 232 bytes ! interface GigabitEthernet2/6 description "CUST-A MULTICAST TESTING" ip vrf forwarding CUST-A ip address 30.30.30.1 255.255.255.252 ip pim sparse-mode ip igmp version 3 end PE1#          PE1#sh ip mroute vrf CUST-A IP Multicast Routing Table Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,        L - Local, P - Pruned, R - RP-bit set, F - Register flag,        T - SPT-bit set, J - Join SPT, M - MSDP created entry, E - Extranet,        X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,        U - URD, I - Received Source Specific Host Report,        Z - Multicast Tunnel, z - MDT-data group sender,        Y - Joined MDT-data group, y - Sending to MDT-data group,        V - RD & Vector, v - Vector Outgoing interface flags: H - Hardware switched, A - Assert winner Timers: Uptime/Expires Interface state: Interface, Next-Hop or VCD, State/Mode (*, 239.255.255.250), 01:46:21/00:02:36, RP 0.0.0.0, flags: SJC   Incoming interface: Null, RPF nbr 0.0.0.0   Outgoing interface list:     GigabitEthernet2/6, Forward/Sparse, 01:46:21/00:02:36 (*, 224.0.1.40), 01:46:29/00:02:54, RP 0.0.0.0, flags: DCL   Incoming interface: Null, RPF nbr 0.0.0.0   Outgoing interface list:     Tunnel0, Forward/Sparse, 01:46:29/00:02:54 ... View more

Hi,   I have an Internet Gateway with dual homed to 2 ISP's terminated in 2 different routers in my end. My end routers are 7606 routers.   I have a WAN link from Router 1 to ISP1 and from Router 2 to ISP2.   Router 1:   -------------   int Gi1/1   description " Link to ISP1"   ip address x.x.x.142 255.255.255.252   x.x.x.141 is configured in ISP end router.   The problem I m facing is that I m not able to ping x.x.x.142 from this router. But x.x.x.141 is pingable.   Also when I check from any internet route server, I m able to ping both x.x.x.142 and x.x.x.141.   Please let me know the possible reasons for the same.   Regards,   Muthu. ... View more

Hi,   I have 2 routers R1 with link to ISP1 and R2 with link to ISP2.   My R1 is acting as MC/BR1 and R2 as BR2.   I m monitoring 2 prefixes and master is learning the prefixes too.For one prefix,best is BR1 and for the other its BR2 depending on throughput,delay,etc configured in pfr master.   Now when i make the WAN interface of BR2 down,the MC is not learning prefixes.It goes to DISABLED state.   Only by makin the WAN down, i can check failover.   Can anyone help me ? Regards, Priyanka ... View more

Hi ,   Can anyone tel me how to make a router act as both MC and BR ? Can anyone give me the configurations ?   I have 2 routers R1 with wan link to ISP1 and R2 with wan link to ISP2. R1 and R2 are connected via a switch through interface vlan.   I need to configure R1 as MC and BR1 and R2 as BR2.   Can anyone pls help me ? Regards, Priyanka. ... View more

Hi ,    I have an ABR which receives routes from an ASBR as E2 routes.When I check the routes in the routing table of ABR, I find only the E2 routes flapping frequently.Can anyone let me know the reason for the same? ... View more

Hi,   I have an Internet Multihoming scenario in which Router A is connected to ISP1 and Router B is connected to ISP2.I have an EBGP running bw A and ISP1 & B and ISP2.Also I have IBGP bw A and B.My IP blocks are advertised in both ISP's and we are trying to achieve load balacing.Both my WAN links to ISP is in Active-Active.In addition to it, I have MHSRP configured in my LAN interface. Now I have enabled nat on the Wan interface connecting to ISP1 and ISP2.I noticed :ip virtual reassembly command automatically appearing on the WAN interface.After some time,I noticed some error logs in my router : May 10 10:05:58.645: %IP_VFR-4-FRAG_TABLE_OVERFLOW: GigabitEthernet0/1: the fragment table has reached its maximum threshold 16 Does this error cause any impact on my application ? Can i remove this command from the interface ? Will my production get affected if i try to do this ? ... View more

Hi,   I have an Internet Multihoming scenario in which Router A is connected to ISP1 and Router B is connected to ISP2.I have an EBGP running bw A and ISP1 & B and ISP2.Also I have IBGP bw A and B.My IP blocks are advertised in both ISP's and we are trying to achieve load balacing.Both my WAN links to ISP is in Active-Active.In addition to it, I have MHSRP configured in my LAN interface. Now I have enabled nat on the Wan interface connecting to ISP1 and ISP2.I noticed :ip virtual reassembly command automatically appearing on the WAN interface.After some time,I noticed some error logs in my router : May 10 10:05:58.645: %IP_VFR-4-FRAG_TABLE_OVERFLOW: GigabitEthernet0/1: the fragment table has reached its maximum threshold 16 Does this error cause any impact on my application ? Can i remove this command from the interface ? Will my production get affected if i try to do this ? ... View more

Hi,   I have a live scenario in which there are 2 routers R1 and R2 -each has a WAN link to ISP1 and ISP2 respectively.I am getting full routing table from both ISP's thru EBGP and I m advertising my IP block to both ISP's.Also I have configured HSRP with 2 groups in my LAN interface vlan2 in both the routers with group 10 and group 20.For HSRP group 10,R1 is the active router and for group 20 R2 is the active router.Also I m tracking the WAN interface of my WAN link in HSRP and if the WAN link goes down,my HSRP state changes.Both the routers are connected to the switch which in turn is connected to the Firewall.Firewall has a default static route pointing towards the virtual ips of both HSRP groups. PUBLIC IP block advertised in ISP1 : 252.0/24 and 252.0/23 PUBLIC IP block advertised in ISP2 : 253.0/24 and 252.0/23 Now my question is : Do I need IBGP between R1 and R2 ?? Regards, Pri.. ... View more