I'm setting up a montitor session on a NEXUS 7K as below. we are receiving in 150M of data and 0 data going out port 9/25. but port 4/24 shows 300M to the span port? Am I doing something wrong here or is that normal? monitor session 10      no shutdown      source int e 9/25  both      destination int e 4/24 ... View more

We have a NEXUS 7000 running PIM SM.  A checkpoint firewall is networke to it configured for PIM Dense mode. The RP is configured on the NEXUS Siwtch that the firewall is connected to. The firewall statically forwards multicast to the NEXUS.  I need the NEXUS to register the multicast so it can be routed to other networks.    is there any way to do that. I've been able to get it working with 3750's but no joy here. thanks in advance JSW ... View more

Hello We have a three tier network with a centralized core switch and multitple distirbution swithces - all 6506 routers. EAch dist switch is its own PIM SM domain and the RP so we never send multicast between the dist switches and through the core. We are putting in a centralized server at the core switch which has to provide specific mcast < X Groups > to all servers at the dist level on all dist switches. So we would like to define the RP <core rp ip>  just for the   <X groups> on the Core switch and tell all the distribution switch that the core is the RP for just the <XGroups> If we put these commands on all the switches including the cores will that set the rp just fo the <XGroups> to the <core rp ip > ? Do I have to define the deine an ACL for all groups if i define it for some or will groups not defined by the ACL defualt to the local RP? do I have to put in the override command ? (We are using MSDP not autorp) ip pim rp-address <distn rp ip> ip pim rp-address <core rp ip> 99           ip access-list 99      permit <XGroups > mask thank you in advance ... View more

We have a WAN with two remote sites. Each site has ASR routers which are configure for PIM BIDIR and we run EIGRP between them. The RP for a specific set of mulicast groups is on R1.                   On R2 we confiure igmp static-group on the LAN side for the groups that are sourced from R1. Most all the time R1 gets the joins and subsequent mroutes are established from R2's static-group joins. But occassionally I've noticed that the outgoing mroutes just get lost for no apparent reason. From R2 the R1 (RP address) is reachable and there is no change in the configuration The only thing I've noticed is we do get some flapping on the interace between R1 and R2 which is caused by the service provider. The interface goes down and is backonline within a few seconds. I'm trying to figure out if the reason we are losing the joins is because of the link flapping. Is there a number of retries that that the R2 will send joins to the RP for the static-groups before it stops trying. if so is that configurable ? Shouldn't R2 keep sending Joins out even if cannot reacht the RP? Thanks in advance ... View more

We have some ASR WAN routers which have a dedicated 400M interface to a remote site. Servers on our Local network source the data through some firewalls via 10G interfaces, which connects to 4500X WAN switches then to the Routers on 1G links. The sources are rate limiting the traffic but the routers are periodically dropping packets which I think is mostly due to burstiness in the traffic between as it traverses through from 10G links to 1G then to 400M.  Can anyone point to some documentation on how to setup traffic shaping on the 4500X outbound port to our WAN routers. I'd like to see if we could buffer and smoothe out the traffic as it exits the 4500X WAN switch 1G port to the WAN Routers. Thank you in advance ... View more

We have a requirement to send data via multicast from source to destination it only has to go through one MRouter which is a 3750G configured with PIMSM All the router does is pick up packets from the source which is directly off one interface and statically route them down the appropriate interface to the receiver. The data is a dump of files which is done periodically and we cannot lose any of the packets. What happens is if they don't do a dump for a while the (S,G) times out.  Then it has to be created again at the beginning of every dump. During that time we lose some of the first packets. Is there any way to get around this by statically creating (S,G) states or any other options? I know we can increase the sg-expiry-timeout but eventually it will expire. Can the expiry-timeout be set to never ? ... View more

im looking for a way to monitor the bandwidth and  graphically identify the real time traffic on several ports in our network. The tool would have to run on a windows workstation which woudl have multple NICS connected to cisco 3750G switches setup wtih SPAN sessions. the data received should be separted and displayed in real time graphically. Kind of like what Perfromance Monitor would do. Does anyone know of such a tool thank you in advance JSW                   ... View more