Cisco Switching/Routing :: RP / Input Drops On 6500 Sup 720 10GE
Jun 17, 2012
What does RP drops entail? We are experiencing 0.23 % drops on an vlan int on one of our 6500. This interface is an L3 to a server-subnet. Doing a sh int vlan 238 switching shows 30935411 RP (Route Processing) drops.It was a bit unclear to me in the thread "Input queue drops on 6500 vlan interface" if RP drops was through the router, or to the router(mgmnt)?I can do a netdr to see what traffic goes to it. It should not generate CPU load, but I think I will wait until after hours before I try that command.
- do NETDR:
-- debug netdr cap rx vlan 238
-- show netdr cap
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Sep 8, 2012
I can see drops on one of our busy L3 vlan in the input queue and are going up very frequently.System image file is "sup-bootflash:s72033-psv-mz.122-18.SXD3.binHardware = 6509
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Feb 7, 2011
I have this topology in part of my networ:k
Cisco7200---Cisco6500---Cisco3560---LAN1
|
Cisco3560
|
LAN2
All devices are interconected via optical 1Gb/s links. There is no QoS implemented on any device and all VLANs are allowed on all interfaces.
Also all links are trunks (with many VLANs)
In LAN1 there was a layer 2 broadcast-storm and 4000packets/s was comming to rest of the network (in one particular VLAN).
1) 7200 with G1 should be able to handle traffic up to 500Mb/s, but a lot of users experienced drops on traffic via 7200.
(CPU load was around 10%).
2) Why do I have input drops on 7200 on link toward 6500 if CPU was normal. Broadcast comming to this interfaces were cca 4kpps. But since it's destination is not on router these packets should be rejected on interface controller. Is that right? (7200 doesn't even has dot1q subinterface in that VLAN but since 6500 allow all VLANs on its trunk these packets reach 7200)
3) Why do I have output drops on Cisco 6500 (it is here as layer 2 device only)? It is max 160Mb/s in output direction. It has WS6724 card with DFC (there is no oversubscription).. Shouln't 6500 send traffic as fast as interface allows (up to 1Gb/s). Am I righ't?
4) After all how coul'd 6500 now if 7200 can't handle these traffic?Output drops should be only seen if QoS is enabled (i.e. shaping), or if there is oversubscription on the linecard?
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Nov 18, 2012
I am in front of a choice what to select to deploy 10Ge in my datacenter to get four 6504e and two 3750x units connected to each other.All devices are located in 3-7 meters away from each other.The choice is whether to go for a multimode fiber and 10GBASE-SR X2 Modules OR cat7 UTP and 10GBASE-T X2 pluggable transceiver.Money wise it doesn't matter.Fiber looks less attractive since it's fragile and a bit harder to put in underfloor area.Cat7 is more attractive but there are 2 points:
1) I couldn't find ANY single photo of a 10GBASE-T (a module with a single RJ45 port). How does it look? Does it come with a cable or...??
2) How stable is it to run 10Ge over UTP?
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Dec 6, 2011
Vlan interface would be dropping packets on the input queue? Refer to the drops/flushes below. This is from a 6500 with a Sup720, there are a number of vlans on it. This 6500 and it's HSRP partner are exhibiting the same symptoms on all the vlans I bothered to check. This particular vlan is quite lightly used, there are only about fifteen user PC's (each with 100 Mb interfaces) on it.
There is a bit of information on input queue drops on Cisco, but this is focused on physical interfaces where I can understand some packets being dropped. I would think that Vlan interfaces would have different issues.I note the "no buffer" errors as well, that also concerns me, especially as that counter is quite close to the "flushes".
Vlan123 is up, line protocol is up Hardware is EtherSVI, address is 00d0.04fd.6000 (bia 00d0.04fd.6000) Description: Vlan123 Internet address is 10.123.123.7/24 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive not supported ARP type: ARPA, ARP Timeout 04:00:00
[Code] .......
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Feb 25, 2013
I have a connection that is loosing packets, my show interface output below summarises the interface where i believe the problem is occuring. My Hardware is 6509 running 12.2
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Sep 15, 2012
What are recommended commands to get input for network documentation (for disaster recovery)?
I've got 6500 with these modules: WS-SVC-FWM-1,
WS-SVC-IDSM-2, VS-S720-10G, WS-X6704-10GE, WS-X6748-SFP and dozens of WS-C3750E-48TD in couple of buildings.
So far I have these commands: Code...
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Feb 10, 2012
I feel that 3560 and 3750 perform differently with the following two commands:
srr-queue bandwidth shape 5 0 0 0
srr-queue bandwidth limit 50
On 3750, the bandwidth for queue 1 is limited to 100mbps x 50% / 5 = 10mbps
On 3560, the bandwidth for queue 1 is limited to the smaller value of BW / shape weight and BW x limit%.
Does it sound about right? is there a way to check for mls qos input queue drops? The show mls qos interface xxx stat only shows the output queue drops. Maybe for some reason the input queue never drops?
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Nov 6, 2011
i have an 2921 connected to an Catalyst 3560. My router interface shows quite a lot of input queue drops. Load is not too much max 5/255.
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Nov 23, 2012
Have got 2 6500 in VSS. I'm seeing unsual high output drops. IOS Version: advipservicesk9-mz.151-1.SY.bin
Seeing too much output drops on interface ( in millions). When checked buffers ( output pasted below), it also shows enourmous drops.Not too sure, but is this normal or is there something fishy; which needs to be investigated. [code]
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Jun 5, 2012
I tried to configure netflow without success.
Setup is the following.
Cisco Catalyst 6509 with Sup720-10GE IOS 12.2(33)SHX7. There are around 30 L3 vlans configured on the switch. I'm only interested for the traffic on one L3 vlan which is the connection to wan cloud.
I wanna see only the traffic that goes to and come from the wan. On other Catalyst where I have routed interfaces i successfully configured netflow. I read a lot in the forums and documentations but i didn't find the right one.
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Nov 17, 2011
How to confirm if a 10Ge interface can be set down to 1Ge if required ?
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Jun 5, 2013
We had to transport one of our 4948 10 GE to another Data Centre and when we got it there and tried to power up its System Status LED was red and we cannot even get console to the device.
We can try to see if the switch is completely dead and needs replacing or is there something we can do to get it back up and running again?
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Jan 28, 2013
I have a two Cisco 4510R each with two sup V-10GE redundant. The code on these sup modules are 12.2(31r)SG3. I need some assistance in getting this setup worked out. I have all four of the 10GE populated with appropriate optics. I setup a link from one 4510R to the other using these interfaces. From the documentation I found I had to use Tengi1/1 and Tengi2/2 as the redundant pair. I plugged the up link into these ports. The Tengi1/1 (active supervisor) links up and works fine. But when I look at the ports port Tengi2/2 it isn't showing link or active. Now port 2/1 (nothing plugged into it) is showing as active.
Now is the redundancy supposed to be 1/1 and 2/1? If so, the switch is in production, when I move the connection over from 2/2 to 2/1 will it cause a outage? The reason for this is I now have a system with a 10G port and would like to utilize one of the other 10G ports. Is that possible? Or does it have to be a lag/redundant up link to work (say to another switch)?
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May 6, 2013
We have a scenario with 2 chassis, both with 2 supervisor Engine 2T, we try to make a configuration of VSS with the chassis and would link to know if is possible have 2 supervisor on chassis one and 2 supervisors on chassis 2 with VSS?
Router#sho switch virtual redundancy
My Switch Id = 1
Peer Switch Id = 2
Last switchover reason = active unit removed
Configured Redundancy Mode = sso
Operating Redundancy Mode = sso
[code]....
would like to use the second supervisors for obteind the local redundancy en chassis 1 and 2, this is possible?
the actually version on four supervisors is: s2t54-ipservicesk9-mz.SPA.150-1.SY3.bin
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May 11, 2011
My router, a Cisco 7204 with NPE 300, is experiencing output drops and input errors on a fastethernet interface. I have a 100Mbps connection with less than 15Mbps utilization at peak times.
FastEthernet1/0 is up, line protocol is up Hardware is DEC21140, address is 0014.a985.1a1c (bia 0014.a985.1a1c) Internet address is 38.102.66.134/30 MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 3/255, rxload 1/255
[Code]....
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Mar 18, 2012
I found increasing of total output drops and output queue drops even input rate was low and no qos apply on this interface. I plan to increase hold queue out for output queue.
Router 1941, 15.0(1)M4
Serial0/0/0 is up, line protocol is up
Hardware is WIC MBRD Serial
[Code]....
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Jan 22, 2013
We have two 3750 stackable switches in core layer.
1. We are planning to stack two 3750 for greater bandwidth to use
2. We could configure 10GE link (by Network module) between these two switches
which solution provides increased bandwidth and redundancy?
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Feb 7, 2013
I am trying to configure a 6509 as the passive receiver from a Dell Force10 10Ge switch with 2 sfp to 2 gig ports on our 6509 switch, I see LACP is up on both sides but cannot pass traffic, I have only 2 vlans that will carry across the aggregate link from our vmware boxes, this is just a temp until I get a 10ge in our 6509 chassis.
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Jun 4, 2012
I am getting conflicting info about this, and need to get confirmations.Is the older 6513 (non E) model compatible with WS-X6407-10GE blade?The switch we're getting this for have WS-SUP720-3B, 6000W power supply, and WS-C6K-13SLT-FAN2.From what I read they are compatible if entered in slot 9-13, but I also heard that 10GE modules are not compatible with the non E chassis.
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Feb 27, 2013
I am looking for 10 GE copper 24 ports switch. After any time I come N2K-C2232TM-10GE. However, this switch is fabric extender and it is used with Nexus 5K series switches.
My question is Can I use this Nexus 2K standalone as other L2 switches?
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Sep 23, 2012
We have CORE switch model : Cisco WS-C4510R-E with dual SUP 5 - 2 10GE. [code] Now We want to upgrade this IOS to the upgraded version.
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Sep 8, 2011
I will be adding two WS-X6716-10GE cards in a CAT6509 soon, and will create 4 port channels with 3 ports each in the new cards, but I do have a few questions:
1 - I will be adding cards in slots 3 and 8, can I mix and bundle ports from both modules into a single etherchannel, I mean, like two ports in slot 3 and 1 port in slot 8 to create a PortChannel ?! Or can I only bundle ports in the same card/port-group in a Etherchannel using this WS-X6716-10GE card?
2 - Do I need to issue the hw-module slot x oversubscription port-group y command in order to be able to bundle ports in the Etherchannel I need to create ?! I will be using 4 Etherchannels (LACP) with 3 ports each, running in trunk mode. So I guess, I will be using something like:
int tengig 3/1
switchport mode trunk
switchport trunk encapsulation dot1q
logging event link-status
[Code] ....
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Dec 4, 2011
Is it possible that catalyst 4500 Supervisor Engine V-10GE WS-X4516-10GE works with WS-X4612-SFP-E?I know suprtvisor engine V-10GE is not support E-serious linecard, but when I use the configuration tool, I can choose these two products together. Is it a bug?I need novell IPX in this case, I find supervisor 6E & 7E are already not support, so I have no choice to choose V-10GE.
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Jul 29, 2012
I have been trying to reset my Cisco 4507 R-E with sup 10GE engines, and I am not having any luck. I have followed the following document:
[URL]
I have tried "wr erase" and "erase startup-config." I cannot delete the vlan.dat file either. I am using the command "erase cat4000_flash:vlan.dat" and its not working either. I have done these commands several times with no success. When asked if I want to save the config changes, I am answering with a "no" I have not tried to depress the small "reset" button on the front of the sup engines as I read that this just restarts the switch.
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Aug 3, 2011
I am trying to setup the management vrf on the 4948 10GE so that my TACACS requests will use that vrf for out-of-band purposes. The vrf is working properly because I can ping the TACACS server using the vrf but the logins do not work. I see this error in the tacacs debug:
TPLUS(00000016)/0: Connect Error No route to host
Looking at the release notes, it states that my version (12.2.54 SG1) does support vrf aware tacacs but the documentation seems to be a bit off because i do not get a server private command option as stated in the configuration doc after configuring a tacacs server group:
[URL]
Here is my config:
ip vrf mgmtVrf
rd X:X
!
interface FastEthernet1
ip vrf forwarding mgmtVrf
ip address x.x.x.x
[code]....
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Jan 17, 2012
When i swapped a Sup v 10 ge for a Sup6 E Tonight in order to take advantage of the netflow capabilites of the Sup V - It came up with module unsupported for the following cards - WS-X4648-RJ45V-E Will these only work with the Sup6 E or what
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Oct 25, 2011
ive updated my catalyst 4948-10GE to version 15.0(2)SG1.Now it is not possible to login by ssh or telnet on this switch. the access is established over the mgmt-Interface and vrf.i get a ping reply but login is no more possible now.is there an new feature in this version for vrf or remotelogin that has to be configured? if neccessary i can paste the running-config here.
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Sep 11, 2011
just want to confirm if I could use the 2x 10GE uplink ports of a cisco 2960 to connect to my Server directly?
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Jun 6, 2011
I want to choose a pair of switches for our data center.What I need: 48 x 1GE access ports, 2 x 10GE uplink ports.Nice feature of 3750-X is stacking. So what features has 4948-10GE? Why I should prefer that switch?
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May 2, 2012
Connected server on a tenGigabitEthernet interface simple configuration setup
switchport
switchport access vlan 201
end
for server connection. Connected with Fibre. The interface is up and up but cannot ping server?
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Dec 21, 2011
how can we upgrade 6500 non modular ios to normal 6500 ios?
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May 15, 2012
we have Supervisor Engine 720 10GE (VS-S720-10G) in slot 5 on Catalyst 6509-E. Slot 6 is free. We need to replace VS-S720-10G. Is it possible the following scenario
1. we will insert new VS-S720-10G into the slot 6
2. then we will remove the faulty VS-S720-10G from the slot 5
Will everything work without interuptions. Is any document where I can find step-by-step procedure how to replace VS-S720-10G ?
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