Inter-As Multicast VPNs
So let me get this right. If you share an IGP domain and your loopbacks for each individual PE are advertised into the IGP then you do not require the PIM RPF Vector feature?
ahhh I think i get this, its becuase of the next hop value right?
wsr17-kent-syd-test#sh ip pim mdt bgp
Peer (Route Distinguisher + IPv4) Next Hop
MDT group 239.232.0.17
2:20:1:203.194.30.61 203.194.30.61
2:10:1:203.194.30.62 192.168.17.1
Similar Messages
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Multicast VPN Extranet Support doesn't work after reload
Hi!
We have Cat6500 with configured Multicast VPN Extranet Support feature. After reload of the 6500 customers in the receive MVPN cannot get mcast stream. We connect test device into source MVPN on that 6500 - everything is OK, mcast stream is available.
Workaround is "no mls ip multicast/mls ip multicast". After these commands mcast in the receive MVPN works fine.
IOS 12.2 SXJ2
Looks like a bug. We have several Cat6500 but only two of them have this issue.
Does anybody faced with such trouble?Hi!
We have Cat6500 with configured Multicast VPN Extranet Support feature. After reload of the 6500 customers in the receive MVPN cannot get mcast stream. We connect test device into source MVPN on that 6500 - everything is OK, mcast stream is available.
Workaround is "no mls ip multicast/mls ip multicast". After these commands mcast in the receive MVPN works fine.
IOS 12.2 SXJ2
Looks like a bug. We have several Cat6500 but only two of them have this issue.
Does anybody faced with such trouble? -
Multicast VPN support in RV042?
Hello,
A quick check of the user manual for the RV042 didn't reveal in crystal clarity whether the RV042 will tunnel multicast packets (between two RV042s).
What I'd like to create is a VPN between two different offices. Some of the applications use multicast, and it's crucial that these apps 'see' each other in both offices (via VPN).
The RV042 manual does mention a "multicast pass through" setting, but it didn't mention whether enabling this applies to a VPN connection established between the two offices, such that any multicast packet on LAN #1 is reflected to LAN #2 (and vice versa) through the VPN.
Has anyone used RV042s to create a VPN between to locations/offices, and turned on multicast pass through? Have you found that apps which use multicast (e.g., iChat on Mac OS X, Bonjour advertised infranet websites, etc.) have their multicast traffic properly appear on both LANs?
Thanks,
KeithAre there any Cisco [or Linksys by Cisco] routers which support Multicast VPN (multicast packets tunneled over VPN)? Looks like there are a number of white papers on this topic, but I've yet to identify a particular model with this functionality.
Thanks,
Keith -
Inter-network IP VPN over MPLS ATM
How to achieve this ?
Here you go:
http://www.cisco.com/univercd/cc/td/doc/product/vpn/solution/manmpls/overview/configat.htm -
Hi,
How do we configure QoS for MVPN on 7600. IOS is 12.2(33)SRC. There is no support for the command set ip dsp tunnel <value>. Is there any other way.
Regards,
PrakashHello Prakash,
Cisco MVPN implementation uses multipoint GRE tunnels to forward multicast packets from customer network via provider network.
So for MVPN QoS applies what applies to unicast traffic.
the multicast packet is carried inside a GRE header with source and destination that are PE loopbacks on the provider network.
I'm not sure but the GRE header TOS byte should be a copy of the carried packet's TOS byte.
If so just have in the core links' schedulers classes that classify traffic based on ip dscp or MPLS EXP (match-any)
see
http://www.cisco.com/en/US/docs/routers/7600/ios/12.2SR/configuration/guide/mvpn.html
and for PFC QoS
PFC QoS processes both unicast and multicast traffic.
http://www.cisco.com/en/US/docs/routers/7600/ios/12.2SR/configuration/guide/qos.html#wp1481021
Hope to help
Giuseppe -
Does configuration of MVPN support multicast through Layer 3 firewall without the need for GRE tunneling?
Yes, configuration of MVPN supports multicast through Layer 3 firewall without the need for GRE tunneling
-
Multicast -- Multicast VPN --- XRv
Would like your assistance please regarding below quesitos
1- As you know to verify multicast we can use ping.
My problem is that when you ping using source loopback address it does not work [spare-mode is configured normally under loopback] however when you configure using outgoing interface it pings normally
What could be the reason for this ?
2- Does XRv simulator works fine with multicast. I am having very strange behavior is that OIL list is always null although source is directly connected. Not sure if its a bug or XRv issue
R8#ping 227.7.7.7 repeat 10
Type escape sequence to abort.
Sending 10, 100-byte ICMP Echos to 227.7.7.7, timeout is 2 seconds:
R8#
RP/0/0/CPU0:XR2#show pim topology
Thu May 22 06:14:34.625 UTC
IP PIM Multicast Topology Table
Entry state: (*/S,G)[RPT/SPT] Protocol Uptime Info
Entry flags: KAT - Keep Alive Timer, AA - Assume Alive, PA - Probe Alive
RA - Really Alive, IA - Inherit Alive, LH - Last Hop
DSS - Don't Signal Sources, RR - Register Received
SR - Sending Registers, SNR - Sending Null Registers
E - MSDP External, EX - Extranet
MFA - Mofrr Active, MFP - Mofrr Primary, MFB - Mofrr Backup
DCC - Don't Check Connected, ME - MDT Encap, MD - MDT Decap
MT - Crossed Data MDT threshold, MA - Data MDT Assigned
SAJ - BGP Source Active Joined, SAR - BGP Source Active Received,
SAS - BGP Source Active Sent, IM - Inband mLDP
Interface state: Name, Uptime, Fwd, Info
Interface flags: LI - Local Interest, LD - Local Dissinterest,
II - Internal Interest, ID - Internal Dissinterest,
LH - Last Hop, AS - Assert, AB - Admin Boundary, EX - Extranet,
BGP - BGP C-Multicast Join, BP - BGP Source Active Prune,
MVS - MVPN Safi Learned, MV6S - MVPN IPv6 Safi Learned
(*,224.0.1.40) DM Up: 00:56:21 RP: 0.0.0.0
JP: Null(never) RPF: Null,0.0.0.0 Flags: LH DSS
Loopback0 00:56:21 off LI II LH
GigabitEthernet0/0/0/2 00:56:14 off LI LH
(*,227.7.7.7) SM Up: 00:29:15 RP: 20.20.20.20*
JP: Join(never) RPF: Decapstunnel3,20.20.20.20 Flags:
GigabitEthernet0/0/0/2 00:29:15 fwd Join(00:03:13) <<--- receiver sends PIM Join normally
(10.8.20.8,227.7.7.7)SPT SM Up: 00:00:03
JP: Join(00:00:46) RPF: GigabitEthernet0/0/0/0.820,10.8.20.8* Flags: KAT(00:03:29) RA RR (00:04:33)
No interfaces in immediate olist <<<<<------
Appreciate your assistance
Regards
Sherif IsmailHi Sherif Ismail,
I encountered this and checked around. It seems that XRv supports Control-Plane features fully - BGP/IGP/LDP/PIM/etc. will work. However, Data-plane is supported with limitations.
Cheers,
Cuong. -
What steps to verify multicast vpn?
I connected notebook with PE. But, I can't play multicast stream with VLC.
Diagram:
7609 (PE) - 7609 (AG) - 7609 (AC) - ME3400 (AC) - Notebook
I see pim neighbor on PE:
co7609s-6#sho ip pim vrf GTV-M nei
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.5.200.89 Tunnel0 1w6d/00:01:27 v2 1 / S P
10.5.0.60 Tunnel0 3w6d/00:01:29 v2 1 / S P <- this PE is sender
10.5.200.100 Tunnel0 5w0d/00:01:19 v2 1 / DR S P
10.5.0.39 Tunnel0 6w2d/00:01:28 v2 1 / S P
co7609s-6#
And I can ping to Notebook:
co7609s-6#ping vrf GTV-M 192.168.73.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.73.2, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
co7609s-6#
PE Configuration:
interface TenGigabitEthernet2/1.1914
encapsulation dot1Q 1914
ip vrf forwarding GTV-M
ip address 192.168.73.1 255.255.255.0
ip pim sparse-mode
ip pim vrf G9TV-M rp-address 192.168.10.1
How should I doI known. Someone change encoder at source Thank you very much. Now, It's look good.
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I have few doubts about Multicast RP address
We have MPLS ISP backbone network, here two P routers are configured as RP address(IN GLOBAL) and MSDP is running between them.
Now, my doubts are
All the Multicast customer we are giving is under MVPN only, if dense mode no RP concept, if sparse mode MVPN have a separate RP. Then what the use of Global RP and MSDP??
I come across MSDP for inter domain multicasting, do we need to run MSDP with other ISPs?? if so, is it advisable??
Pls clear my above doubts!!
Thanks in advance!!Hi Sankar,
All the Multicast customer we are giving is under MVPN only, if dense mode no RP concept, if sparse mode MVPN have a separate RP. Then what the use of Global RP and MSDP??
CE multicast (or simply c-multicast) and SP multicast (or simply p-multicast) are totally independent. As you mentioned, even if Customer multicast is sparse mode, the RP should be from VRF. RP from SP global cannot help with VRF multicast (Else you need complex leaking). Global RP is required if the P-multicast is sparse mode, inorder to establish the MDT tunnel. MSDP is required if you provide some inter domain multicast.
I come across MSDP for inter domain multicasting, do we need to run MSDP with other ISPs?? if so, is it advisable??
MSDP can be iether used for Inter domain or with Anycast RP. Basically MSDP is the protocol used to update any active source details to otehr RP in same domain (in case of Anycast) or different domain.
You may have to check if you have inter-as design or anycast to understand the need for MSDP.
HTH,
Nagendra -
Good Day! I have got a task to play multicast traffic through mpls (at least between the same vrf). I have 3 switches 3750 ME, sw1, sw2 and sw3. Multicast source host is connected to sw3 int fa1/0/6, receiver host is connected to sw1 int fa 1/0/5, respectively. Both interfaces are in vlan 100 (just the same vlan number). Interface vlan is in vrf green. Switches are connected back to back sw1-sw2-sw3 via gigabit interfaces (dedicated for mpls) like ce1/pe1-p-pe2/ce2. In addition, sw1 and sw3 are rr-clients for sw2. To check multicast traffic I use multicasttest utility (http://www.mikkle.dk/multicasttest/). Multicast group address for test is 224.237.248.237. Multicast traffic walk from host 192.168.1.3 to 192.168.2.2. Also, there are vl 100 interfaces on switches in vrf green created just for check proper connectivity.
Configs:
hostname sw1
system mtu routing 1500
ip subnet-zero
ip routing
no ip dhcp conflict logging
ip dhcp excluded-address 192.168.2.1
ip dhcp excluded-address 172.16.1.1
ip dhcp pool green1
network 192.168.2.0 255.255.255.0
default-router 192.168.2.1
default-router 172.16.1.1
ip vrf green
rd 100:100
route-target export 100:100
route-target import 100:100
mdt default 232.1.1.1
ip multicast-routing distributed
ip multicast-routing vrf green distributed
interface Loopback0
ip address 10.1.1.1 255.255.255.255
ip pim sparse-dense-mode
ip ospf 1 area 0
interface Loopback100
ip vrf forwarding green
ip address 10.0.100.1 255.255.255.255
ip pim sparse-dense-mode
interface FastEthernet1/0/5
switchport access vlan 100
interface GigabitEthernet1/1/2
no switchport
ip address 10.0.1.2 255.255.255.0
ip pim sparse-dense-mode
ip ospf 1 area 0
speed auto 1000
mpls ip
interface Vlan100
ip vrf forwarding green
ip address 192.168.2.1 255.255.255.0
ip pim sparse-dense-mode
router ospf 1
log-adjacency-changes
router bgp 65001
no synchronization
bgp log-neighbor-changes
neighbor 10.1.1.2 remote-as 65001
neighbor 10.1.1.2 update-source Loopback0
no auto-summary
address-family ipv4 mdt
neighbor 10.1.1.2 activate
neighbor 10.1.1.2 send-community extended
exit-address-family
address-family vpnv4
neighbor 10.1.1.2 activate
neighbor 10.1.1.2 send-community extended
exit-address-family
address-family ipv4 vrf green
no synchronization
network 10.0.100.1 mask 255.255.255.255
network 192.168.2.0
exit-address-family
ip classless
hostname sw2
system mtu routing 1500
ip subnet-zero
ip routing
ip vrf green
rd 100:100
route-target export 100:100
route-target import 100:100
mdt default 232.1.1.1
ip multicast-routing distributed
ip multicast-routing vrf green distributed
vtp mode transparent
interface Loopback0
ip address 10.1.1.2 255.255.255.255
ip pim sparse-dense-mode
ip ospf 1 area 0
interface GigabitEthernet1/1/1
no switchport
ip address 10.0.2.1 255.255.255.0
ip pim sparse-dense-mode
ip ospf 1 area 0
speed auto 1000
mpls ip
interface GigabitEthernet1/1/2
no switchport
ip address 10.0.1.1 255.255.255.0
ip pim sparse-dense-mode
ip ospf 1 area 0
speed auto 1000
mpls ip
router ospf 1
log-adjacency-changes
router bgp 65001
no synchronization
bgp log-neighbor-changes
neighbor 10.1.1.1 remote-as 65001
neighbor 10.1.1.1 update-source Loopback0
neighbor 10.1.1.1 route-reflector-client
neighbor 10.1.1.3 remote-as 65001
neighbor 10.1.1.3 update-source Loopback0
neighbor 10.1.1.3 route-reflector-client
no auto-summary
address-family ipv4 mdt
neighbor 10.1.1.1 activate
neighbor 10.1.1.1 send-community extended
neighbor 10.1.1.3 activate
neighbor 10.1.1.3 send-community extended
exit-address-family
address-family vpnv4
neighbor 10.1.1.1 activate
neighbor 10.1.1.1 send-community extended
neighbor 10.1.1.1 route-reflector-client
neighbor 10.1.1.3 activate
neighbor 10.1.1.3 send-community extended
neighbor 10.1.1.3 route-reflector-client
exit-address-family
address-family ipv4 vrf green
no synchronization
exit-address-family
ip classless
hostname sw3
system mtu routing 1500
ip subnet-zero
ip routing
no ip dhcp conflict logging
ip dhcp excluded-address 192.168.1.1
ip dhcp pool green2
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
ip vrf green
rd 100:100
route-target export 100:100
route-target import 100:100
mdt default 232.1.1.1
ip multicast-routing distributed
ip multicast-routing vrf green distributed
vtp mode transparent
interface Loopback0
ip address 10.1.1.3 255.255.255.255
ip pim sparse-dense-mode
ip ospf 1 area 0
interface Loopback100
ip vrf forwarding green
ip address 10.0.100.3 255.255.255.255
ip pim sparse-dense-mode
interface FastEthernet1/0/6
switchport access vlan 100
interface GigabitEthernet1/1/1
no switchport
ip address 10.0.2.2 255.255.255.0
ip pim sparse-dense-mode
ip ospf 1 area 0
speed auto 1000
mpls ip
interface Vlan100
ip vrf forwarding green
ip address 192.168.1.1 255.255.255.0
ip pim sparse-dense-mode
router ospf 1
log-adjacency-changes
router bgp 65001
no synchronization
bgp log-neighbor-changes
neighbor 10.1.1.2 remote-as 65001
neighbor 10.1.1.2 update-source Loopback0
no auto-summary
address-family ipv4 mdt
neighbor 10.1.1.2 activate
neighbor 10.1.1.2 send-community extended
exit-address-family
address-family vpnv4
neighbor 10.1.1.2 activate
neighbor 10.1.1.2 send-community extended
exit-address-family
address-family ipv4 vrf green
no synchronization
network 10.0.100.3 mask 255.255.255.255
network 192.168.1.0
exit-address-family
ip classless
Пинги везде проходят (как между свитчами, так и между хостами)
sw1#ping vrf green 192.168.2.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.2.2, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/8 ms
sw1#ping vrf green 192.168.1.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/9 ms
sw1#ping vrf green 224.237.248.237
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.237.248.237, timeout is 2 seconds:
Reply to request 0 from 192.168.2.1, 1 ms
Reply to request 0 from 10.0.100.1, 1 ms
sw3#ping vrf green 192.168.1.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.3, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/9 ms
sw3#ping vrf green 192.168.2.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.2.2, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/8 ms
sw3#ping vrf green 224.237.248.237
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.237.248.237, timeout is 2 seconds:
Reply to request 0 from 192.168.1.1, 1 ms
Reply to request 0 from 10.0.100.3, 1 ms
I can see I pim neighbors in global table, but cat’s see them in vrf green. I think the problem is here.
sw1#sh ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.1.1 GigabitEthernet1/1/2 20:25:44/00:01:43 v2 1 / S P
sw2#sh ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.2.2 GigabitEthernet1/1/1 20:25:57/00:01:22 v2 1 / DR S P
10.0.1.2 GigabitEthernet1/1/2 20:25:58/00:01:19 v2 1 / DR S P
sw3#sh ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
10.0.2.1 GigabitEthernet1/1/1 20:26:13/00:01:35 v2 1 / S P
sw1#sh ip pim vrf green neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
sw1#
sw3#sh ip pim vrf green neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
P - Proxy Capable, S - State Refresh Capable
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
sw3#
mroute in vrf:
sw1#sh ip mroute vrf green 224.237.248.237
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,
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
(*, 224.237.248.237), 02:50:33/00:02:56, RP 0.0.0.0, flags: DCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan100, Forward/Sparse-Dense, 02:50:33/00:00:00
sw3#sh ip mroute vrf green 224.237.248.237
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,
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
(*, 224.237.248.237), 02:48:36/00:02:25, RP 0.0.0.0, flags: DCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan100, Forward/Sparse-Dense, 02:48:36/00:00:00
sw1#mstat
VRF name: green
Source address or name: 192.168.2.1
Destination address or name: 192.168.1.3
Group address or name: 224.237.248.237
Multicast request TTL [64]:
Response address for mtrace:
Type escape sequence to abort.
Mtrace from 192.168.2.1 to 192.168.1.3 via group 224.237.248.237 in VRF green
From source (?) to destination (?)
Waiting to accumulate statistics....* * *
Timeout on first trace.
sw3#mstat
VRF name: green
Source address or name: 192.168.1.1
Destination address or name: 192.168.1.3
Group address or name: 224.237.248.237
Multicast request TTL [64]:
Response address for mtrace:
Type escape sequence to abort.
Mtrace from 192.168.1.1 to 192.168.1.3 via group 224.237.248.237 in VRF green
From source (?) to destination (?)
Waiting to accumulate statistics......
Results after 10 seconds:
Source Response Dest Packet Statistics For Only For Traffic
192.168.1.1 192.168.1.1 All Multicast Traffic From 192.168.1.1
| __/ rtt 0 ms Lost/Sent = Pct Rate To 224.237.248.237
v / hop 0 ms --------------------- --------------------
192.168.1.1 ?
| \__ ttl 0
v \ hop 0 ms 0 0 pps 0 0 pps
192.168.1.3 192.168.1.1
Receiver Query Source
I hope I have shown all necessary configs, outputs and schemes to make the picture clear. Other outputs I can show on demand. Thanks in advance.Hi Evgeny
Unfortunately the multicast VPN feature is not supported on the 3750 ME platform even though the commands are present . This is also mentioned in Cisco Feature Navigator. There are no plans to implement this on this platform.
Thanks
Mayuresh -
Multicasting on Cat4507 - wrong feature set ???
Hello gurus,
I've been trying to enable inter-vlan multicast on Cat 4507 switch. Now I've read, that all you need is
"ip multicast-routing" and "ip pim parse-mode" for interfaces on switch. First command works fine, the second - doesn't : here is a reply from switch
switch(config)#int Gi1/1
switch(config-if)#ip pim ?
% Unrecognized command
switch(config-if)#ip ?
Interface IP configuration subcommands:
access-group Specify access control for packets
arp Configure ARP features
dhcp DHCP
igmp IGMP interface commands
verify verify
Is it just a problem with feature set or am I missing something ?
Thanks,
AlexHello Alex,
you need a layer 3 to configure multicast on, e.g. a VLAN interface:
interface Vlan2
ip pim sparse-dense-mode
HTH,
GP -
Maximum LSP on Inter-AS vpnv4/ipv4
Hi Luc
Thank you for your reply, in fact we are in the process of using Option B (ASBR-to-ASBR). We have all the configs in place just did not activate the neighbors pending confirmation. We are using Eng5; I would expect CAM/TFIB to be able to hold these prefixes, I seem to have noticed that the weakest processor can handle up to one million. Yet, it is not written anywhere on these specifics.
Thanks
FRHi Fernando,
In MPLS VPN networks, 17000 vpnv4 prefixes is not that much. You can have hundreds of thousand of vpnv4 prefixes.
You did not specifiy which option A,B, C or D you are running. For option A and D, the scalability could become an issue because you'll have many logical links between the ASBRs, one for every VPN shared between the 2 autonomous systems. This is a known limitation factor in these two designs and it is a pain to operate such a model, starting from a certain scale. Each new VPN shared between the 2 autonomous systems will lead to the creation of a new logical link on the ASBRs.
Option B and C do not have this and are hence more scalable and easier to maintain operationally. What inter-as MPLS VPN brings is the concentration of the LSPs on the ASBRs, instead of having them spread over many PE and P routers in a non-inter-as MPLS VPN network. But, 17000 prefixes should be ok on a 12k router.
Thanks,
Luc -
hi,
dose anybody can tell me that if current IOS support label switching multicast traffic in the core mpls network? i search the cco and find some information only about support multicast traffic in mpls/vpn.
could you answer this question or give me some links to read, thanks a lot :-)On the Cisco Feature Navigator you can look for:
Multicast-VPN: Multicast Support for MPLS VPN
http://tools.cisco.com/ITDIT/CFN/Dispatch
As fare I remember there is a special range Labels reserved for Multicasting but can't find this any more in the RFC
I think its an inportand feature for service providers if they want to connect customers that use Multicasting
Hope this help
Gerrit Frans van Pelt -
What is difference between BGP and MP-BGP? and what is the exact application of both?
Multiprotocol Extensions for BGP (MBGP), sometimes referred to as Multiprotocol BGP or Multicast BGP and defined in IETF RFC 4760, is an extension to Border Gateway Protocol that allows different types of addresses (known as address families) to be distributed in parallel. Whereas standard BGP supports only IPv4 unicast addresses, Multiprotocol BGP supports IPv4 and IPv6 addresses and it supports unicast and multicast variants of each. Multiprotocol BGP allows information about the topology of IP Multicast-capable routers to be exchanged separately from the topology of normal IPv4 unicast routers. Thus, it allows a multicast routing topology different from the unicast routing topology. Although MBGP enables the exchange of inter-domain multicast routing information, other protocols such as the Protocol Independent Multicast family are needed to build trees and forward multicast traffic.
Multiprotocol BGP is also widely deployed in case of MPLS L3 VPN, to exchange VPN labels learned for the routes from the customer sites over the MPLS network, in order to distinguish between different customer sites when the traffic from the other customer sites comes to the PE router for routing. -
OSM-2+4GE-WAN vs new 7600-ES20-GE3CXL card
Please can you provide me information about differencess between those 2 modules, considering MPLS support. I am interested in VPLS feature support. Is this new ES20 card support non H-VPLS, like situation where we have access or trunk (dot1q) port on same 7600 router on WS-X6724 SFP card where is MPLS uplink realized with this ES20 card. Generaly,which card OSM or ES20 is better solution for MPLS (L3VPN, EoMPLS and VPLS)feature.
The 7600-ES20-GE3CXL card has following MPLS features
Layer 2 VPNs
? EoMPLS with MAC learning
? H-VPLS (MPLS Edge or IEEE 802.1ad Edge)
? Flexible QinQ
? Layer 3 VPNs
? MPLS VPN (RFC 2547-bis)
? Inter-AS and Carrier-Supporting-Carrier
? Multicast VPN
Following links may help you
http://www.cisco.com/en/US/products/hw/routers/ps368/products_data_sheet0900aecd8057f3ad.html
http://www.cisco.com/en/US/products/hw/routers/ps368/products_configuration_guide_chapter09186a00801e5bfa.html#wp1002608
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