I have a weird issue with a QOS policy that I have implemented. Details are below.
This is basically the policy I have created. It is running on a Cisco 877 router (running Advance IP Services 12.4). The internet connection is an Internode ADSL service.
class-map match-any VOIP
match access-group name VOICE-OUT
!
!
[Code]....
anyway to implement priority marking on the voice packets on the IP communcicator which installed in a laptop (running Data VLAN in the switch)?
View 1 Replies View RelatedOn one of our N7K, we have some packets dropped by the COPP policy in the class-default class-map. Partial results of "show policy-map interface control-plane" not so long after clearing the counters : [code]
what traffic is dropped by the policy ? Is there any logging possible ?
i'm doing B.E., final year.My project is IP TRACEBACK.so we hav to mark packets in router.Is it possibe to mark packet in cisco packet tracer?
View 1 Replies View Related1) which DSCP marking to use for ex90s(HD video)?
2) as a test we are planning do to deploy ex90 at few of locations. at location 1 we will do DSCP EF marking while at the other location we will do DSCP AF41 for video..assume, LOC1 calls LOC2: so, when video traffic from LOC1 arrives to LOC2 will it be marked as EF? and when traffic from LOC2 arrives LOC1 then traffic will be marked as AF41? if yes, then will there be any issue sometimes in case if we run out of bandwidth for EF?
We have subscribed for MPLS links from Service provider we have a DC where the core connectivity is 90 MB and Remote branch location Connectivity is 64 Kbps. We are in process of enabling QOS for our links with co-ordination with Service provider ; as per our finding the branches have more RX traffic (downloading) so after discussion with provider we were advised to mark traffic from the core end and give it to the provider.The provider at its PE will honor the marking and set some B/W percentages and prioroty based on the DSCP marking values.
We need to mark this traffic so it is feasible to mark the traffic at the core DC router which has the below H/W details,Cisco 7206VXR (NPE-G2) processor (revision A) with 917504K/65536K bytes of memory.
Processor board ID 36161439
MPC7448 CPU at 1666Mhz, Implementation 0, Rev 2.2
6 slot VXR midplane, Version 2.11
or is it feasible to mark the traffic at the core switch.
I have a Cisco 3725 router with IOS version "Cisco IOS Software, 3700 Software (C3725-ADVIPSERVICESK9-M), Version 12.4(12)". And this router is serving as a CE route for our MPLS connection to the service Provider. We do also have multiple VRFs ( around 10) and the WAN interface is DS3. So we created point-to-point subinterfaces and we put them in different vrfs. We have now transitioned to a new ISP and the ISP requested us to mark all of our outgoing traffics with DSCP AF31. So I have created the following policy-map
policy-map TRAFFIC-OUT-WAN-AF31
class TRAFFIC-OUT-WAN
set ip dscp af31
class-map match-any TRAFFIC-OUT-WAN
match any
Now we do have multiple GRE tunnel interfaces sourced from one of the WAN subinterface ( which is a member of VRF A). So the moment I applied the the policy-map on this WAN sub-interface (using the syntax "service-policy out TRAFFIC-OUT-WAN-AF31"), most of the GRE tunnels went down. And there is eBGP running on top of these GRE tunnels.
I am running 1.1.24 and spa303 phones I have a qos policy setup to mark all packets
The following is my qos
information 192.168.1.15/24
makring enabled
cos/DSCO DSCO
Value 0xb8
On my upstream device I only allow traffic that is marked with this dscp value. No traffic is coming through. RTP traffic is marked because it comes off the phone marked but I would expect the qos Policy so mark everything going to that ip space to be marked.
I want to mark traffic on Cisco 3020 switch entering to interface gigabitEthernet 0/1 ingress direction with DSCP values. interface gigabitEthernet 0/1 is in access mode and in vlan 10.
This is my config:
access-list 1 permit host 10.10.1.1
class-map match-all ipclass1
match access-group 1
[Code].....
My new small router 866vae crashes and makes cold reboots every 20-30 minutes. I updated IOS, but it didn't work. The logs show texts like this:
Possible software fault. Upon reccurence,crashinfo, "show tech" and contact Cisco Technical Support. http serverip http access-class 23ip http authentication localip http secure-serverip http timeout-policy idle 60 life 86400 requests 10000!ip dns serverip nat inside source list 101 interface Dialer0 overload!dialer-list 1 protocol ip permitmac-address-table aging-time 15no cdp run!access-list 23 permit 192.168.1.0 0.0.0.255access-list 101 permit ip 192.168.1.0 0.0.0.255 anyaccess-list 111 permit udp any eq bootps any eq bootpcaccess-list 111 permit tcp any anyaccess-list 111 permit udp any anyaccess-list 111 permit icmp any any echo-replyaccess-list 111 permit icmp any any time-exceededaccess-list 111 permit icmp any any unreachableaccess-list 111 permit icmp any any administratively-prohibitedaccess-list 111 permit icmp any any echoaccess-list 111 permit gre any any!control-plane!!line con 0login localno modem enableline aux 0line vty 0 4access-class 23 inprivilege level 15login localtransport input telnet!scheduler allocate 60000 1000!end
i did on cisco 2960S switch at user ingress interface. but the marking is not showing in show policy-map interface gig 1/0/10 interface and ACL is not showing any match.
I also had a config reference from 2960S cisco guide.
access-list 103 permit tcp any any eq 80
access-list 104 permit tcp any any eq 23
access-list 105 permit icmp host 172.24.68.4 any
class-map IN_HTTP
match access-group 103
class-map IN_TELNET
match access-group 104(code)
I have a pair of Nexus 7K's running 5.1(3). I have a handful of edge devices that I need to mark ingress traffic, and need to mark both DSCP and CoS. Right now, I have a working config that marks DSCP appropriately.While that works dor DSCP, the MQC will not allow me to mark both DSCP and COS in the same class, and unlike IOS, it appears that Nexus does not have a default DSCP-to-COS mapping. My understanding is this can be solved using table maps, but I don't see how that can solve my problem in this specific scenario (it appears I can do marking or table-map mutation, but not both?). How I can accomplish both?
View 5 Replies View RelatedI have a 3750G switch running 12.2(44)SE6 my customer has some Cisco EX90 and ex-Tandberg VC units connected to the switch in a dedicated VLAN 600. The switch is then connected to the WAN router which has its own VLAN 6
From sh mls qos interface x/x/x statistics I can see that the traffic is marked by the VC units as DSCP 34 however when I run this command on the interface to the CE router the marking has been lost.
Similarly in the opposite direction incoming from the CE router I can see the marking coming from across the MPLS ok but when I check the output to the VC unit the marking has been lost.
This would indicate that in the process of routing between VLAN's the DSCP marking has been lost.
how to correct this issue. Because my interfaces are in different VLAN's do I need to VLAN based QoS?
when using egress netflow (v9) and output marking.
The topologie : Server <-----> R1 1>-----<1 R2 2>----<2 R3
R2 is a 7200 with c7200p-adventerprisek9-mz.124-15.T11.bin What I'm doing :- R2 forwards ping packets from Server to R3. When they arrive on R2, icmp packets are marked with CS3
- I change the DSCP to CS4 on R2 before forwarding packet to R3. I'm using for that an output service-policy on the R2-2 interface like this : interface ATM2/0.36 point-to-point
ip address 192.168.1.1 255.255.255.252
ip flow ingress
ip flow egress
[Code]....
in switch 2960s ( c2960s-universalk9-mz.122-55.SE5 ) , i want to marking the traffic between two hosts (Data replication), i choose to use " mac access-list" to classify my trafic before apply the policy marking . but did'nt work . c
! my mac ACL
mac access-list extended test
permit host 000a.1a41.aa52 host 000a.1a41.1bc2
!
class-map match-all test
match access-group name test
[code]....
I've no experience in VoIP and been ditched with looking at an IP trunking problem on our network.The users where getting dead lines or silent calls, but it seems after re-seating IP trunking card here and there around the network a few times, all is settled to normal. Unfortunately it's a third party that look after the majority of the telephony, and as they can't figure out why this happens they often say it must be a problem with the data WAN it traverses.So I started trying to figure something out, I have IPSLA monitoring setup in Solarwinds on most of the routers and all looks well from that aspect; MOS is 4.34 and Jitter is only 1ms at worst. I've taken a wireshark packet capture of the IP trunk by mirroring the port on the switch at a main site where I've been told a lot of calls are routed through. Inside wireshark I used the 'telephony> voip calls' tool and decoded all the calls. The output is showing most calls have 'Out of Seq' and 'Wrong Timestamp' at around 25-50%. Although these calls seem fine otherwise, and I took this capture whilst the fault was not occurring. I know I need to capture next time when the fault is occurring, but this is what I have for now.How can i fix this or even start to troubleshoot further?
p.s- each site has two routers running GLBP to the WAN, over two ISP locations. I read something about having consistent routing to avoid packets arriving out of sequence, but haven't found anything yet to say this is how I can/should do that.
My sent packets are 0 and also received packets. What can I do?
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View 1 Replies View RelatedAn IP packet of size 1500 bytes passes through two network segments before it reaches its destination. The header size of this packet is 20 bytes. The maximum size of an IP packet in the first intermediate network (its MTU) is 1024 bytes, and that in the second network is 576 bytes.Explain how the IP packet described above would be fragmented into smaller parts in a router, paying particular attention to the flag bits and to the fragment offset field in the header.
- Fragmentation and reassembly needs to break a data-gram into an almost random number of pieces that later can reassembled.
- It uses the identification field to ensure that fragments of different datagrams are not mixed.
- IP packet of 1500 bytes comprises 1480 bytes of data and a 20-byte header.
- In the first intermediate network, the packet size of 1024 bytes allows for 1000 bytes of data plus a 20-byte IP
header.[code]
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The topology is:
Client -> ACE VIP VLAN 81 -> RSERVERS VLAN 80
Vlan 80 is in L2 mode(no interface vlan in the switch core 6509, route occurs through the ace appliance).
The IP address 10.96.200.6 is the gw for rservers.
[Code]...
Ive just downloaded wireshark just to mess around and ive noticed that even when ive got nothing open its still capturing packets. It gives me a choice of interfaces i want to choose to monitor and i would of thought it be "Realtek PCIe Family Controller" as this is normally the default one (im using wireless) but its saying no packets are being captured from this interface its the "Microsoft" Interface thats capturing the packets. Ive attached a screenshot, i know this isnt nothing bad but was just wondering 1) why isnt my Realtek PCIe interface capturing anything?
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