MPLS to support multicast traffic

Dear Gurus,
Does EoMPLS passes multicast traffic? Before my customer can pass multicast traffic (video) thru our Metro-Ethernet network. What we did is migrate the connection to our EoMPLS network, and then suddenly the video is not working.
Thanks.
Jeff

Hi Laurent,
Its just modulator that converts some analog videos to digital but uses multicast, the multicast data are transmiited by the modulator and received on the other end by the demod. Below is the topology
Before:
Modulator----metro-ethernet----metro-ethernet----demodulator
Current Setup:
Modulator----metro-ethernet---MPLS-ROUTER-----------------MPLS-ROUTER---metro-ethernet----demodulator
tia.

Similar Messages

Cisco devices that support Multicast traffic?

Folks,
I am looking for list of Cisco devices that support Multicast traffic. Does anyone know how to get this information?
Thanks,
Nagesh

Cisco Feature Navigator

Mpls forwarding for multicast

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

Can mpls support multicast?

Hi,
Can mpls support multicast packets?
Meaning, can multicast packets be sent to destinations over mpls network?
If so, how does it work?
I read in this forum somewhere that someone mentioned mpls and multicast can co-eixt.
What exactly does it mean?
Thanx!

In the MPLS network you can either use native multicast or you could implement mVPN on the PE routers if you implement MPLS VPN. mVPN uses native multicast in the core to encapsulate the multicast messages coming from a CE router and to forward these messages to PEs containing the same VRF.
For more information on mVPN, see the following link:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t13/ftmltvpn.htm
Hope this helps,

Bridge Domain and multicast traffic

Hi All,
i am planning to build a Point to multipoint network based on ME3600X switch at the HQ and ISR 2900 routers at the Branches. i need to simulate a lan service.
i though of using EOMPLS at the ISR 2900 and closing them at the ME3600X. at the ME3600X i will use bridge domain to have this point to multipoint functionality.
at the configuration guide i saw that when i am using bridge domain i need to disable IGMP snooping on every Vlan.
my question is how the bridge domain treat Multicast traffic ?
furthermore, can i mix EOMPLS and Bridge Domain ?
Thanks,
Avi.

Hi Avi,
ME3600X doesn't support VPLS yet (check with your account team for the roadmap) so I don't think your design will work here. What you can do is having a router behind the ME3600X which will have a dedicated VLAN with each remote site.
HTH
Laurent.

What RFC for MPLS is supported?

Hi,
does anybody know what rfc's regarding mpls are supported by cisco (f.e. ASR9000 or Nexus 7000)?
TiA,
Stephan

Hi Stephan,
this is the list for ASR9k:
RFC 2547, BGP/MPLS VPNs
RFC 2702, Requirements for Traffic Engineering Over MPLS
RFC 2858, Multiprotocol Extensions for BGP-4
RFC 3031, Multiprotocol Label Switching Architecture
RFC 3032, MPLS Label Stack Encoding
RFC 3063, MPLS Loop Prevention Mechanism
RFC 3140, Per Hop Behavior Identification Codes
RFC 3270, Multi-Protocol Label Switching (MPLS) Support of Differentiated Services (E-LSPs only)
RFC 3443, Time To Live (TTL) Processing in Multi-Protocol Label Switching (MPLS) Networks
RFC 3469, Framework for Multi-Protocol Label Switching (MPLS)-based Recovery
RFC 3564, Requirements for Support of Differentiated Services-aware MPLS Traffic Engineering
RFC 4124, Protocol Extensions for Support of Diffserv-aware MPLS Traffic Engineering
RFC 4125, Maximum Allocation Bandwidth Constraints Model for Diffserv-aware MPLS Traffic Engineering
RFC 4127, Russian Dolls Bandwidth Constraints Model for Diffserv-aware MPLS Traffic Engineering
RFC 4379, Detecting Multi-Protocol Label Switched (MPLS) Data Plane Failures.
RFC 3815, Definitions of Managed Objects for the Multiprotocol Label Switching (MPLS), Label Distribution Protocol (LDP)
RFC 4448, Encapsulation Methods for Transport of Ethernet over MPLS Networks
RFC 5462, Multiprotocol Label Switching (MPLS) Label Stack Entry: "EXP" Field Renamed to "Traffic Class" Field.
HTH,
Ivan.

Multicast traffic flooding

Hi
We are using Network Load Balancing on some Windows 2003 servers which is configured as IGMP multicast.
The servers are connected to a 3550 SMI switch which is connected to a HP4108.
Before I configured either of these switches I connected a packet sniffer and saw the multicast traffic appearing on all ports on both switches.
I configured the HP switch as a Multicast querier and now on the 3550 I see the multicast mac addresses logged against the server ports. The 3550 also detects the muticast router as you can see:
prod-3550#sh mac-address-table mult
Vlan Mac Address Type Ports
1 0100.5e7f.4601 IGMP Fa0/10, Fa0/12, Gi0/1
1 0100.5e7f.4602 IGMP Fa0/9, Fa0/11, Gi0/1
prod-3550#
prod-3550#sh ip igmp snoo mrouter
Vlan ports
1 Gi0/1(dynamic)
The 3550 is still spamming the multicast traffic to all ports whereas the HP switch is only replicating thisto ports that are part of the multicast group.
Can anyone tell me why the 3550 is doing this or what else I need to check?
Thanks in advance.

Kate
You do not tell us much about how the 3550 is configured. From your description of the problem I am going to assume that you do not have IGMP snooping configured. This link will show you how to configure IGMP on the 3550:
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225sec/3550scg/swigmp.htm
If my assumption is not correct and you do have IGMP snooping configured, then you will need to tell us more about how the 3550 is configured so we can determine why it is propagating multicast to all ports.
HTH
Rick

Does ACE-30 support multicast in routed mode?

We currently have ACE20's, which only support multicast in bridge mode.
Was wondering if it's the same on ACE30's, or if Cisco finally implemented support for mcast in routed mode.
thx
Kevin

Could you please confirm if this applies to both ACE20 & ACE30, or just ACE20?
If both, when does Cisco plan on supporting mcast in routed mode?
thx
Kevin

Cisco outdoor AP 1300 - OSPF multicast traffic

Hi everybody,
I have a basic question but i really do not know the answer.
So,
I want to know if i can talk OSPF through a wireless connection formed by 2 cisco aironet 1300?
I mean i am not sure if the access point is going to pass the OSPF's multicast traffic.
best regards

Duplicate post.
I'm posting my response to your other post.

RSPAN does not put IPv6 multicast traffic into port

Hi.
There is two switches in the equation:
WS-C2960-24TT-L 12.2(55)SE5 C2960-LANBASEK9-M
and stack of
Switch Ports Model SW Version SW Image
1 12 WS-C3750G-12S 12.2(55)SE8 C3750-IPSERVICESK9-M
2 12 WS-C3750G-12S 12.2(55)SE8 C3750-IPSERVICESK9-M
* 3 24 WS-C3750G-24T 12.2(55)SE8 C3750-IPSERVICESK9-M
3 is a master
There is VTP domain with pruning off and RSPAN VLAN 1001
core#sho vlan remote-span
Remote SPAN VLANs
1001
there is RSPAN session on first:
#sho monitor session 1
Session 1
Type : Remote Source Session
Source Ports :
Both : Fa0/11
Dest RSPAN VLAN : 1001
Port Fa0/11 is in access mode, VLAN 303
and on second:
core#sho monitor session 1
Session 1
Type : Remote Destination Session
Source RSPAN VLAN : 1001
Destination Ports : Gi3/0/2
Encapsulation : Native
Ingress : Disabled
Problem is that i can't see any IPv6 multicast traffic (like ICMPv6 RA or such) on Gi3/0/2 which is absolutely sure there, because if i remove monitoring session on core switch and put Gi3/0/2 into trunk mode, i can see packets i need in vlan 1001:
# tcpdump -s0 -nnvei eth1 vlan 1001 and ip6
tcpdump: WARNING: eth1: no IPv4 address assigned
tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
14:17:37.059045 50:57:a8:f0:72:1b > 33:33:ff:00:00:01, ethertype 802.1Q (0x8100), length 90: vlan 1001, p 0, ethertype IPv6, (class 0xe0, hlim 255, next-header ICMPv6 (58) payload length: 32) 2abc:abc:1:600b::2 > ff02::1:ff00:1: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2abc:abc:1:600b::1
source link-address option (1), length 8 (1): 50:57:a8:f0:72:1b
14:17:38.083266 50:57:a8:f0:72:1b > 33:33:ff:00:00:01, ethertype 802.1Q (0x8100), length 90: vlan 1001, p 0, ethertype IPv6, (class 0xe0, hlim 255, next-header ICMPv6 (58) payload length: 32) 2abc:abc:1:600b::2 > ff02::1:ff00:1: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2abc:abc:1:600b::1
source link-address option (1), length 8 (1): 50:57:a8:f0:72:1b
14:17:39.107068 50:57:a8:f0:72:1b > 33:33:ff:00:00:01, ethertype 802.1Q (0x8100), length 90: vlan 1001, p 0, ethertype IPv6, (class 0xe0, hlim 255, next-header ICMPv6 (58) payload length: 32) 2abc:abc:1:600b::2 > ff02::1:ff00:1: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has 2abc:abc:1:600b::1
source link-address option (1), length 8 (1): 50:57:a8:f0:72:1b
There is no such problem with usual unicast and broadcast traffic.
Any suggestions?

Interestingly, i've found bug CSCsr64007 which i stubmbled upon on one of my switches during troubleshooting. The effect of this bug was that RSPAN took IPv6 multicast packets from unrelated VLANs and forwarded them into monitor port.
Looks like they have "fixed" it filtering IPv6 multicast completely.

Cisco Catalyst 2950/2960/3750 Multicast Traffic Preference

Hello all,
we, as a student company act as an ISP for university dormitories. We would like to (if it's possible) deploy QoS to prefer multicast traffic over all other types of traffic.
Devices used in network:
Acces layer: Cisco Catalyst 2950, 12.1(22)EA14
Dristribution layer: Cisco Catalyst 2960G, 12.2(58)SE1
Core layer: Cisco Catalyst 3750G, 12.2(52)SE
Do you see any possibility to solve this with these devices? We have almost no experience with QoS, therefore any help would be greatly appreciated.
Thanks in advance.

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Posting
Hmm, I think it should be doable although the 2950s, if non-E variants, are especially weak in QoS features. I.e. those might create some issues.
With the 2960G and 3750G, you often will create problems when you enable QoS because QoS, by default, allocates its buffers resources for 4 egress queues per port rather than using all for 1 egress queue per port. However, this can be countered by QoS parameter tuning, but that takes some QoS expertize to match to your traffic and your overall QoS policy.

MPLS VPN support for VPNv6

All,
which routers and IOS has MPLS VPN support for VPNv6?
regards
Devang Patel

Hello Devang,
in the feature navigator look for the 6VPE feature for example a C7609 with sup720 3BXL and IOS 12.2(33)SxHa2 has the vpnv6 address-family.
see for example
http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-ov_mpls_6vpe.html
you still need an MPLS/Ipv4 core or an ipv4 core if using GRE tunnels:
Table 1 Feature Information for Implementing IPv6 VPN over MPLS
Feature Name Releases Feature Information
IPv6 VPN over MPLS (6VPE)
12.2(28)SB
12.2(33)SRB
12.4(20)T
The IPv6 VPN (6VPE) over a MPLS IPv4 core infrastructure feature allows ISPs to offer IPv6 VPN services to their customers.
This entire document provides information about this feature.
MPLS VPN 6VPE support over IP tunnels
12.2(33)
SRB1
This feature allows the use of IPv4 GRE tunnels to provide IPv6 VPN over MPLS functionality to reach the BGP next hop.
This following sections provide information about this feature:
â¢6VPE Over GRE Tunnels
Hope to help
Giuseppe

MPLS CE support on Cisco 2800 ISR router

Hi all, could I ask you for some hints about MPLS CE support on Cisco 2800 ISR router today? I`m finding restrictions and recommendations for feature implementation. Do you have any cisco web site about them?
Thank you for your advice and/or hints.
Peter

Thanks for an answer. I need to use multi-VPN model on CE router, but with QoS on one physical CE-PE connection (e.g. Frame-Relay DLCI).However, all VPNs on CE router must be secured for each one. The solution is Multi-VRF service feature, but, however, with multi-DLCI model on Frame-Relay and QoS per DLCI. Now, I`m finding a scenario to provide multi-VPN model on CE router with single-DLCI model and single QoS per one DLCI for all VPNs. And that, MPLS CE feature on C2800 could be used, if possible.
So, I don`t know more about MPLS CE on C2800 and I don`t know make a result to propsed solution...

Which Linksys VPN Routers support Multicast forwarding

Which Linksys VPN Routers support Multicast forwarding / passthru I have remote SPA942 phones connected thru a vpn to a SPA9000/SPA400 system. After manual provisioning the phones work, but voice mail, auto provisioning, etc that use multicast do not work. VPN is using Netgear boxes which do not forward multicast. I'm going to switch to Linksys/Cisco VPN routers but want to make sure which models will do the multicast forwarding.
Thanks

I only no of 1 for sure and that is by downloading 3rd party firmware like DD-WRT, the WRT54G. See the below Link.
http://en.wikipedia.org/wiki/Wireless_Distribution_System
Ttech

Vpc bind-vrf on Nexus 7000/N7k to ensure forwarding of multicast traffic over peer-link?

In previous vPC setups with N5k (or also N6k), I had to use the 'vpc bind-vrf' command to ensure the forwarding of multicast over the vpc peer-link, especially for receivers in in non-vPC VLANs and the receivers connected to Layer 3 interfaces.
I am wondering why this command isn't available on N7k? Isn't this necessary on this platform or is it just not yet implemented?
Any hint is welcome!
Stephan Strack

Hey Stephan,
The 'vpc bind-vrf' command allocates a special internal VLAN for routing traffic over the vPC peer-link to ensure L3 connections on the vPC peer or orphan ports successfully receive multicast traffic on N5k/N6k platforms. This workaround is not needed on the N7K because that platform implements the vPC loop prevention rule differently in hardware.
In short, 'vpc bind-vrf' is not required on N7K.
-Andy

MPLS to support multicast traffic

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