From: alsontra@hotmail.com
Date: Thu Feb 05 2004 - 22:59:42 GMT-3
Also, the "ip pim nbma" command enables multipoint interfaces to map
multiple outgoing ip's to a single interface. As is shown below in my show
ip mroute:
(*, 228.1.1.1), 00:00:59/00:00:00, RP 223.1.1.5, flags: SJCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial0/2, 141.1.1.2, Forward/Sparse, 00:00:13/00:02:46
Serial0/2, 141.1.1.6, Forward/Sparse, 00:00:13/00:02:46
"PIM nonbroadcast multiaccess (NBMA) mode allows the Cisco IOS software to
replicate packets for each neighbor on the NBMA network. Traditionally, the
software replicates multicast and broadcast packets to all "broadcast"
configured neighbors. This action might be inefficient when not all
neighbors want packets for certain multicast groups. NBMA mode enables you
to reduce bandwidth on links leading into the NBMA network, and to reduce
the number of CPU cycles in switches and attached neighbors. "
CCO link....
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr_c/ipcpt3/1cfmulti.htm
Hope that helped... :-)
Alsontra
----- Original Message -----
From: "Hossam" <sam6626@yahoo.com>
To: <alsontra@hotmail.com>
Cc: <ccielab@groupstudy.com>
Sent: Thursday, February 05, 2004 3:26 PM
Subject: Re: Multicast over NBMA again!
> Configurations are at the bottom of the original mail.
> thanks
> SAM
> From: alsontra@hotmail.com Add to Address Book
> To: ccielab@groupstudy.com, "Hossam" <sam6626@yahoo.com>
> Subject: Re: Multicast over NBMA again!
> Date: Thu, 5 Feb 2004 17:21:35 -0800
>
>
>
> Can you post the configs for R5 and R2...
>
> Alsontra
>
> ----- Original Message -----
> From: "Hossam" <sam6626@yahoo.com>
> To: <ccielab@groupstudy.com>
> Sent: Thursday, February 05, 2004 3:12 PM
> Subject: Multicast over NBMA again!
>
> > Guys,
> > I have been stuck all day with this. For me it is so strange. I hope
> someone can help.
> >
> > R1 -----Ethernet----- R2 --S0/0.24----------------------S0/0-R4
> > |
> > S0/0.256
> > |
> > | |
> > | NMBA |
> >
> > s0/0 S0/0
> > Ether - R5 R6--- Ether
> >
> > I am running Auto-RP with R2 as the RP and the Agent.
> > I configure mrm with R1 looback as the source and both R5 and R6
> ethernet
> as recievers AT R2.
> >
> > R5 is ok. It creats the (*.G) entry. It joins the shared treee. and
> it
> joins the SPT too. And it gets the muticast traffic with no problems.
> >
> > R6 is a bit lose. From the debug i can tell that R6 creats the shared
> tree
> entry and it joins it successfuly. BUT it joins the SPT INTIALLY (when
> it
> recieve the FIRST multicast packet for the group)
> >
> > Then (for some reason) it does't CONTINUE recieving the multicast
> traffic
> (ONE PACKET only is recieved for any group) . So it keeps counting down
> for
> the SPT entry and it prunes it eventually. And i stay with the (*,G)
> entry
> alone. And ofcourse no traffic is reaching the Ethernet behind R6 even
> when
> the SPT entry is still in the mroute table!!
> >
> >
> >
> > The NBMA is running OSPF. I tried both default NMBA and multipoint
> options. In both cases all interfaces are reachable. But I get same
> problem
> with R6.
> >
> > I tried two hardwares with two Different IOSs in R6 positon. Both
> gave the
> same symptons.
> >
> > Can any one help!! (configurations r below)
> >
> > Thanks
> > SAM
> >
> > R2:
> >
> > ip multicast-routing
> > mpls ldp logging neighbor-changes
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > no voice hpi capture buffer
> > no voice hpi capture destination
> > !
> > !
> > mta receive maximum-recipients 0
> > !
> > !
> > controller E1 1/0
> > !
> > !
> > !
> > interface Loopback0
> > ip address 200.0.0.6 255.255.255.255
> > ip pim sparse-dense-mode
> > ip mrm test-receiver
> > ip ospf network point-to-point
> > !
> > interface Ethernet0/0
> > ip address 150.50.7.6 255.255.255.128
> > ip pim sparse-dense-mode
> > ip mrm test-receiver
> > half-duplex
> > !
> > interface Serial0/0
> > ip address 150.50.100.6 255.255.255.224
> > ip pim sparse-dense-mode
> > ip mrm test-receiver
> > encapsulation frame-relay
> > ip ospf network point-to-multipoint
> > frame-relay map ip 150.50.100.2 162 broadcast
> > frame-relay map ip 150.50.100.5 162 broadcast
> > frame-relay map ip 150.50.100.6 162 broadcast
> > no frame-relay inverse-arp
> > !
> > interface Serial0/1
> > no ip address
> > shutdown
> > !
> > interface Serial0/2
> > no ip address
> > encapsulation atm-dxi
> > no keepalive
> > !
> > interface Serial0/3
> > no ip address
> > clockrate 128000
> > !
> > router ospf 1
> > log-adjacency-changes
> > network 150.50.7.6 0.0.0.0 area 0
> > network 150.50.100.6 0.0.0.0 area 0
> > network 200.0.0.6 0.0.0.0 area 0
> > !
> > ip http server
> > ip classless
> > !
> > ip pim rp-address 200.0.0.4 10 override
> > !
> > ip mrm manager TEST1 ==============This is for another TEST
> > manager Loopback0 group 224.11.11.2
> > senders 1
> > receivers 2 sender-list 1
> > !
> > !
> > access-list 1 permit 150.50.17.1
> > access-list 1 permit 224.88.88.88
> > access-list 2 permit 150.50.7.7
> > access-list 10 permit 224.44.44.44
> > !
> >
> > ___________________________________________________
> >
> > R5
> >
> > ip multicast-routing
> > mpls ldp logging neighbor-changes
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > no voice hpi capture buffer
> > no voice hpi capture destination
> > !
> > !
> > mta receive maximum-recipients 0
> > !
> > !
> > !
> > !
> > interface Loopback0
> > ip address 200.0.0.5 255.255.255.0
> > ip pim sparse-dense-mode
> > ip mrm test-receiver
> > ip ospf network point-to-point
> > !
> > interface Ethernet0/0
> > ip address 150.50.77.5 255.255.255.0
> > ip pim sparse-dense-mode
> > ip mrm test-receiver
> > half-duplex
> > !
> > interface Serial0/0
> > ip address 150.50.100.5 255.255.255.224
> > ip pim sparse-dense-mode
> > encapsulation frame-relay
> > ip ospf network point-to-multipoint
> > no fair-queue
> > frame-relay map ip 150.50.100.2 152 broadcast
> > frame-relay map ip 150.50.100.5 152 broadcast
> > frame-relay map ip 150.50.100.6 152 broadcast
> > no frame-relay inverse-arp
> > !
> > interface Serial0/1
> > no ip address
> > shutdown
> > !
> > router ospf 1
> > log-adjacency-changes
> > network 150.50.7.5 0.0.0.0 area 0
> > network 150.50.77.5 0.0.0.0 area 111
> > network 150.50.100.5 0.0.0.0 area 0
> > network 200.0.0.5 0.0.0.0 area 0
> > !
> > ip http server
> > ip classless
> > !
> > ip pim rp-address 200.0.0.4 10 override
> > !
> > !
> > access-list 10 permit 224.44.44.44
> > access-list 33 permit 224.44.44.44
> > !
> > ______________________________________________________-----
> >
> > R2
> >
> > ip multicast-routing
> > mpls ldp logging neighbor-changes
> > !
> > !
> > voice call carrier capacity active
> > !
> > !
> > !
> > !
> > !
> > !
> > !
> > no voice hpi capture buffer
> > no voice hpi capture destination
> > !
> > !
> > mta receive maximum-recipients 0
> > !
> > !
> > !
> > !
> > interface Loopback0
> > ip address 200.0.0.2 255.255.255.255
> > ip pim sparse-dense-mode
> > ip mrm test-receiver
> > ip ospf network point-to-point
> > !
> > interface Ethernet0/0
> > ip address 150.50.17.2 255.255.255.0
> > ip pim sparse-dense-mode
> > ip mrm test-sender
> > half-duplex
> > !
> > interface Serial0/0
> > no ip address
> > encapsulation frame-relay
> > no fair-queue
> > no frame-relay inverse-arp
> > frame-relay lmi-type cisco
> > !
> > interface Serial0/0.24 point-to-point
> > ip address 150.50.24.2 255.255.255.0
> > ip pim sparse-dense-mode
> > frame-relay interface-dlci 124
> > !
> > interface Serial0/0.256 multipoint
> > ip address 150.50.100.2 255.255.255.224
> > ip pim sparse-dense-mode
> > ip ospf network point-to-multipoint
> > ip ospf priority 10
> > frame-relay map ip 150.50.100.2 125 broadcast
> > frame-relay map ip 150.50.100.5 125 broadcast
> > frame-relay map ip 150.50.100.6 126 broadcast
> > !
> > interface Serial0/1
> > no ip address
> > shutdown
> > !
> > router ospf 1
> > router-id 200.0.0.2
> > log-adjacency-changes
> > network 150.50.17.2 0.0.0.0 area 3
> > network 150.50.24.2 0.0.0.0 area 1
> > network 150.50.100.2 0.0.0.0 area 0
> > network 200.0.0.2 0.0.0.0 area 0
> > !
> > ip http server
> > ip classless
> > !
> > ip pim rp-address 200.0.0.4 10 override
> > ip pim send-rp-announce Loopback0 scope 10
> > ip pim send-rp-discovery Loopback0 scope 10
> > !
> > ip mrm manager TEST1
> > manager Loopback0 group 224.11.11.2
> > senders 1
> > receivers 2 sender-list 1
> > ip mrm manager TEST3
> > manager Loopback0 group 224.45.45.45
> > senders 1
> > receivers 2 sender-list 1
> > ip mrm manager TEST4
> > manager Loopback0 group 224.33.33.33
> > senders 1
> > receivers 2 sender-list 1
> > !
> > !
> > access-list 1 permit 200.0.0.1
> > access-list 2 permit 150.50.7.6
> > access-list 2 permit 150.50.77.5
> > access-list 10 permit 224.44.44.44
> >
> >
> >
> >
>
>
>
>
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This archive was generated by hypermail 2.1.4 : Fri Mar 05 2004 - 07:13:46 GMT-3