Cisco Switching/Routing :: SUP-7E - Input /output Rate Not Incrementing Under VLan
Mar 6, 2013
On my SUP-7E, when I issue a " show interface vlan X " I cannot see the expected input/rate reflecting the real rate (which should be very high).
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 4000 bits/sec, 2 packets/sec
(Under the physical interfaces it is ok)However on other SUP-IV I can see the real rate.
My questions are :
- Why the SUP-7E does not reflect the rate, whereas the SUP-IV does ?
- I have heard about the 'counter' command under the vlan interface to activate the rate counters. Is this command application has any side effect on the switch ?
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Jan 20, 2013
Our customer get the problem that the switch count the 5mins input/output rate of connected traffic interface always ZERO.The problem only occur in the module 3,4 and 5 interface, module 2 has no problems.
-------------------------------------------------------------------------------------------------
Catayst 4506E
12.2(52)SG
Chassis Type : WS-C4506-E
Power consumed by backplane : 0 Watts
Mod Ports Card Type Model Serial No.---+-----+--------------------------------------+------------------+-----------1 6 Sup 6-E 10GE (X2), 1000BaseX (SFP) WS-X45-SUP6-E 2 48 10/100/1000BaseT (RJ45) WS-X4548-GB-RJ45 3 48 10/100/1000BaseT (RJ45) WS-X4648-RJ45-E 4 48 10/100/1000BaseT (RJ45) WS-X4648-RJ45-E 5 48 10/100/1000BaseT (RJ45) WS-X4648-RJ45-E
[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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Nov 23, 2010
when i type "show interface" command on 1941 router, shows below print. Why 5 minute input-output rate are 0 bits? Can it be a bug?
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
304015 packets input, 151607798 bytes, 0 no buffer
[Code].....
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Jun 7, 2012
I have a video feed coming into my 3570. It comes in at 5 minute input rate 18777000 bits/sec, 1695 packets/sec. However, the uplink to the router is much different, 5 minute output rate 130000 bits/sec, 28 packets/sec. I am in a lab and about ready to go into testing phase for a project when we discovered this problem, as this video feed is not veiwable on the other end.
Below is the config and capture from the switch.
BLOSSw1#sh int g1/0/6GigabitEthernet1/0/6 is up, line protocol is up (connected) Hardware is Gigabit Ethernet, address is a44c.112f.3506 (bia a44c.112f.3506) MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec, reliability 255/255, txload 1/255, rxload 4/255 Encapsulation ARPA, loopback not set Keepalive not set Full-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000BaseTX SFP input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output 00:00:00, output hang never Last clearing of "show interface" counters 15:16:25 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute
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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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Nov 14, 2011
I have a 2960 that I need to limit the uplink port to 50Mbps for 3 vlans and 350Mbps for another vlan. Would the following config achieve that or is this even possible for the 2960?
class-map match-any VLAN50-51-52
match vlan 50-52
class-map match-any VLAN53
[Code].....
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Mar 5, 2013
I have a really weired thing happening on 6509 device with one of my customers.The device has a SUP 2 (MSFC2) with version 12.2.18SXF17B.
any VLAN interface once administratively down or simply down shows on "show interface status" output as VLAN.While it supposed to show "Routed". However once the port is up it is shows "routed" like it should.
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Mar 13, 2013
I have configured a vlan interface on a 3750 switch. there is aprox 4Mb active traffic flowing through the interface, but when I do a "show interface vlan (vlanid)" the output show zero bits in and zero bits out. Its a typical L3 config with one IP on the vllan interface acting as the gateway for the VLAN devices. Is this a normal behaviur ? and if so is there any way to get the traffic in/out stats. The end PC/devices are connected to this switch via an L2 TRUNK and I dont have access to the L2 switch on which the actual devices connect. so cant get the real time stats of those interfaces.
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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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Mar 22, 2012
We have 7206 VXR running NPE-G1, we are looking for the GigE cards for 7200 which supports upto line rate and came across Cisco 7200 Series Input/Output Controllers The datasheet for the same doesnt say anything about line rates.
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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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Jan 10, 2012
Sometimes our network lag and i thing there is a computer making this problem. i'd like to audit all input output of all port of a Catalyst 1900. all i manage to do is to enter to the console menu via Telnet.. once here, i try monitoring but i'm afraid to do a bad thing :
Catalyst 1900 - Main Menu
[C] Console Settings
[S] System
[N] Network Management
[P] Port Configuration
[Code]...
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Feb 4, 2013
my 3750-E Core Stack is connected to the Provider Router and is the DG for the internal LAN. I saw that the CPU is very high also in the night, but I found not the problem. I use an SVI to connect the provider due to HA reasons. I sniffered the network but saw no ecessive broadcaststorms. There was a PBR configured but I deleted it wihtout any success..
switch Version
15.0(1)SE1
10#sh proc cpu so
[Code]......
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Aug 6, 2012
It is said that the switching fabric of WS-C3750X-24T-E is 160Gbps.Could any body tell me what is switching fabric, any relevance or difference from forwarding rate?,Is there any document to know how will the switch reach the 160Gbps full switching fabric performance?
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Apr 16, 2013
We are facing since one month in our two Cisco WS-C3750G-12S on many interfaces input errors when data transer or ping (ICMP) increase input erros. Not only port 1 but many interface has same issue, i have change new IOS but still same issue, once i have erase startup config but same issue we are facing and finaly i have replace same new switch with the same IOS it's working fine.(c3750-ipservicesk9-mz.122-55.SE4.bin) [code]
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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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Oct 27, 2011
I have a 6509E switch with dual 6Kw power supply that is logging "Power supply 1 input has changed. Power capacity adjusted to 2671.20W" then will bounce back to normal at random times from 1sec to 10sec. Is there a command to check what each input level of the power supply to try to identify possibly which source is causing the problem? The power supply input lights remains green while this is occuring.
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Nov 17, 2011
I have 2 NX4001. Each one has an uplink to a 5K. There is no VPC between the 4K and the 5K. The 5K are VPC enabled.There is a large number on input discards on the 4001 interfaces connected to the 5K and is incrementing.I have a server with smartfailover that is flapping and I think the input discard might be the culprit.what is the cause on input discard. Note: All NXOS to the latest.
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Jul 1, 2012
I am not sure why the CRC and input errors are increasing in fastethernet port...This port is used as Intradomain cross connect to Data Center service provider for LAN extension between two Data Centers in different locations... The link is 100 MB. The switch port is directly connected to patch panel of DC provider and I believe they have some L3 switch or some other device that is providing LAN extension...
#sh interfaces fastEthernet 0/23
FastEthernet0/23 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0019.3050.1497 (bia 0019.3050.1497)
Description: ASA_VPN_TO
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
[code]....
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Oct 2, 2012
I am not sure why the CRC and input errors are increasing in fastethernet port...This port is used as Intradomain cross connect to Data Center service provider for LAN extension between two Data Centers in different locations... The link is 100 MB. The switch port is directly connected to patch panel of DC provider and I believe they have some L3 switch or some other device that is providing LAN extension...
#sh interfaces fastEthernet 0/23
FastEthernet0/23 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0019.3050.1497 (bia 0019.3050.1497)
[Code].....
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Feb 6, 2012
We are experiencing with high CPU input due to ARP input between 20:30 and 22:30 every day At this time we have a lot of backup operations. When I look the netflow report, I can't see anything anormal.
We are changing our backup server's NIC card from 1gig to 10Gig. The backup operation's traffic is high (approx 2Gbps level) but 6509 has to be handle this size of traffic.
We are using two 6509E in VSS mode and our image version is s72033-adventerprisek9_wan-mz.122-33.SXJ.bin
20:00
show ip arp summary
--------------
2588 IP ARP entries, with 166 of them incomplete
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Oct 1, 2011
We added Site02 for redundancy and DR. Also added new SAN and ESX hosts. The CPU on device Site01Server01 is not very happy when files are being transferred between the sites. Since the setup is the same at both sites, why is the problem only at site01?
Site02 is newer and we have two 3750X-24 with IOS 12.2(55)SE3 on ipservices, for site02server01; no problem.
Site01server01 is a stack of two 3750G-24PS with IOS 12.2(58)SE on ipservices.
[Code]....
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Nov 10, 2011
I have some trouble with that policy-map on my 2960 or 3560 switches with LAN base 12.2(53)SE2. I want to use that feature to catch video traffic from webcams in laptops which can't send dscp values out of the box. This is my test config to check if the function is working: catch every traffic from my workstation for testing, access-list 101 permit ip any any, class-map match-all CL_TEST
1. I can't see any counters with the command "sh policy-map interface FastEthernet 0/1". Cisco tells that this command is not possible. But how I can see if the policy is working correct?
2. When I did the configuration I can't see any packets with dscp af41 on the out going interface on the switch with "sh mls qos int gi0/1 statistic" as I expected. After reloading the switch I see the pakets with af41. Okay for that moment. But.After that I changed something in the policy-map. Only "set ip dscp ef" for a second test.
Generating some traffic I see only packets with af41 as before I changed the policy-map. No traffic with ef on the outgoing interface.
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Mar 15, 2013
I have an ASR 1002x connected to a 6513. Connection is from ASR Gig Copper SFP to 6513 Copper 10/100/1000 port. The ASR is recevinig Runt and input errors. I have removed the negotiation auto command on both boxes and hard coded the speed etc and still errors occur. I have also added the negotiation auto to both devices and also removed it with out hard coding the speed at and same results. Everytime I have seen these errors is has been to collision caused by a duplex mismatch.
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Mar 11, 2013
I have an odd situation where I cannot get a device connected to a built in switchport with out input and crc errors. When connecting to a GLC-T sfp it works fine.Here is my test layout
Outdoor wireless AP --- 10' of cat6 cable --- Gigabit POE injector --- 10' Cat6 cable --- 3560G port 48. (input and crc errors)
When I do this there are input and crc errors on the switch port. This has been confirmed on three different switches and three different outdoor AP's. We though at first it was the injector, but when we run the same setup, but instead connect the device to port 49 with a GLC-T sfp there are no errors.
Outdoor wireless AP --- 10' of cat6 cable --- Gigabit POE injector --- 10' Cat6 cable --- 3560G port 49 (GLC-T). (No errors)
I have upgraded the 3560G to the latest ios and still it has the same problem. If I run the same setup to a 2960 there are no errors at all.
Outdoor wireless AP --- 10' of cat6 cable --- Gigabit POE injector --- 10' Cat6 cable --- 2960 port g0/1 (No errors)
I have also tried manually setting the speed on the 3560G with no success.
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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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Sep 3, 2012
We have Cisco ME3400 switch, with configuration described below.
GE0/1 port is uplink:
interface GigabitEthernet0/1
description ***MATED-IUB_C&U-Plan***
port-type nni
switchport trunk allowed vlan 331,450,4085
switchport mode trunk
GEo/2 is configured as below:
interface GigabitEthernet0/2
description ***From NIB***
port-type nni
switchport access vlan 4085
[URL]
We have also tried Loopguard feature enabled on all ports: but after some period same problem is repeated.
version information is below:
Cisco IOS Software, ME340x Software (ME340x-METROIPACCESSK9-M), Version 12.2(25)SEG3, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Wed 25-Jul-07 22:56 by amvarma
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Jan 6, 2013
interface Vlan24
description Internal Wireless Internet
ip address 10.x.0.1 255.255.254.0
[Code]....
So, I am trying to limit the bandwidth used by this vlan. The service-policy output statement works, the service-policy input statement does not. My test is to get on that vlan and go to speedtest.net. My download speeds are about 3.5Mb/s, my upload speeds are about 20Mb/s.
it has something to do with this:
sh mls qos ip
QoS Summary [IPv4]: (* - shared aggregates, Mod - switch module Sid - Switch Id)
Int Sid Mod Dir Class-map DSCP Agg Trust Fl AgForward-By AgPoliced-By
[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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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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Nov 9, 2011
i have issues logging into one of our core switches.its a 6509 switch but i cannot log in remotely.when i try to console in on the console port, i cannot log in instead i get the above error message.I haven't rebooted yet but would it solve the problem as this switch is a production switch.
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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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