Hi, Excepts from Cisco DOC: As this is one of the mostly which gets missed.   Note  As RSPAN VLANs have special properties, you should reserve a few VLANs across your network for use as RSPAN VLANs; do not assign access ports to these VLANs. • RSPAN sessions can coexist with SPAN sessions within the limits described in the "SPAN and RSPAN Session Limits" section. • If traffic for a port is monitored in one direction, you can use Catalyst 2950 or 2955 switches as source, intermediate, or destination switches. • If traffic for a port is monitored in both directions, make sure that the intermediate switches and the destination switch are switches other than Catalyst 2950 or 2955 switches, such as Catalyst 3550, 3750, or 6000 switches. • For RSPAN configuration, you can distribute the source ports and the destination ports across multiple switches in your network. • A port cannot serve as an RSPAN source port or RSPAN destination port while designated as an RSPAN reflector port. • When you configure a switch port as a reflector port, it is no longer a normal switch port; only looped-back traffic passes through the reflector port. • RSPAN does not support BPDU packet monitoring or other Layer 2 switch protocols. • In a network consisting of only Catalyst 2950 or Catalyst 2955 switches, you must use a unique RSPAN VLAN session on each source switch. If more than one source switch uses the same RSPAN VLAN, the switches are limited to act only as source switches to ensure the delivery of all monitored traffic to the destination switch. • You can configure any VLAN as an RSPAN VLAN as long as these conditions are met: – The RSPAN VLAN is not configured as a native VLAN. – Extended range RSPAN VLANs will not be propagated to other switches using VTP. – No access port is configured in the RSPAN VLAN. – All participating switches support RSPAN. Note  The RSPAN VLAN cannot be VLAN 1 (the default VLAN) or VLAN IDs 1002 through 1005 (reserved to Token Ring and FDDI VLANs). • You should create an RSPAN VLAN before configuring an RSPAN source or destination session. • If you enable VTP and VTP pruning, RSPAN traffic is pruned in the trunks to prevent the unwanted flooding of RSPAN traffic across the network for VLAN-IDs that are lower than 1005. ... View more

Hi,   By backup, do you mean one active at a time and second one only active once primary has failed ? If this is your requirement, HSRP or VRRP can be used. You might also be interested in GLBP by the way.   HTH, Smitesh Kharecha   PS: Please rate helpful posts. ... View more

Hi,   You might want to try Zone Base Firewall and only allow ICMP which ever are generated within the network.   HTH, Smitesh   Please rate helpful posts... ... View more

Hi, Can you post the outputof command "show kron schedule" As far as command and its syntax is concern, you have done it correctly.   Regards, Smitesh ... View more

Hi Naveen, It is chassis MAC. Regards, Smitesh Kharecha PS: Please rate helpful posts. ... View more

Hi Balajee, Default action of IOS is to select dynamic RP. Overide keyword is used to prefer static RP over dynamic ones. Static RP are generally the loopback IPs. Having said that if route to RP is lost, any NEW channel request will be fallback to dynamic learnt RP. Regards, Smitesh Kharecha PS: Please rate helpful posts. ... View more

Hi, Any particular reason you have configured Port-channel 20 as spanning-tree bpdugaurd enable ? Remove that from both end of port-channel and your port-channel would start working. Regards, Smitesh PS: Please rate helpful posts. ... View more

Jon, Just a clarification, all 3 links are from same ISP. As far as your doubts goes over packet arriving out of order, even I doubted the same, however I'm still wondering how to check that and what action as such can be taken to rectify out of order packet arrival issue. Regards, Smitesh ... View more

Thanks Jon, I had already checked by making basic ACL matching packets for EF and tried end to end extended ping, which were succesfull. I confirm EF is honoured in telco cloud. What else can be the reason. Regards, Smitesh ... View more

Thanks Joseph... Adding to my OP, Assuming that interface is GigE, having bandwidth command of 100Mbps and shaping applied 75% ( shaped at 75Mbps). Also consider the following. VoIP Class: Assigned priority bandwidth of 60 Mbps Class ABC: Assigning 60% of remaining bandwidth Class PQR: Assiging 30% of remaining bandwidth Class XYZ: Assigning 10% of remaining bandwidth Will we face VoIP packet drops in hardware queue considering G.729 codec used, if we increase the original shaping limit from 75% to 100 % Message was edited by: smitesh kharecha ... View more

Hi All, The policy-map is bit more complex,so I just wrote the consice and brief what it is doing. Let me put my doubt in other words, say if bandwidth provided by telco is 100Mbps, also same is configured on interface with bandwidth command. Now if I shape any class at 68 Mbps, while shaping is in action does it includes L2 overheads ? Regards, Smitesh ... View more

Jeffrey, I'm doubting the device opposite your cisco, in terms of speed and Duplex. Can you just  once more confirm speed and duplex on both the devices and preferrable hard code them. Regards, Smitesh ... View more