Cisco Switching/Routing :: Normal CPU Performance For 2800

Dec 11, 2011

Is there any official Cisco reference to describe what is considered to be the highest acceptable production CPU load on 2800 routers? I found the document "Integrated Services Routers G2 - Performance Overview" that states at page 5,Most service providers set their CPU alarms to 60 or 65 percent. Many enterprise customers are comfortable running production networks with CPU around 70 or 75 percent.

View 3 Replies


ADVERTISEMENT

Cisco Switching/Routing :: Catalyst 3850 - Normal To See 30% Cpu Usage When Idle?

Apr 18, 2013

We have a new stack of two Catalyst 3850-48T's running IOS XE 3.02.00 (we are upgrading to 3.02.01 this weekend.)We noticed the CPU usage is around 30% even when there is almost no traffic going through the switch.  We haven't seen any indication that it is causing a problem, but is this considered a normal baseline?I attached my config (with passwords sanitized,) show ver, show controllers utilization, and show process cpu history.
 
I noticed this behavior is normal on 2900XL/3500XL switches, but I didn't find anything relating it to 3850 switches.  Does the same thing apply to the 3850 switches? [code] url...

View 3 Replies View Related

Cisco Switching/Routing :: Higher Than Normal CPU With Spikes To 90 / 100% - Snmp - 6509e?

Nov 2, 2011

we are seeing network latency problems and our cpu on the 6509e is spiking and have a above average % for the past week or so. When we do see these spikes it seems that snmp and apr input is high 
 
CPU utilization for five seconds: 75%/53%; one minute: 17%; five minutes: 14%
PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process   9     1636168     95505      17131 4.19%  0.36%  0.34%   0 Check heaps =======>
  12      478096   1011864        472  3.07%  0.12%  0.12%   0 ARP Input =====>  52       30420    436000         69  0.07%  0.07%  0.07%   0 Per-Second Jobs
  53      317496      7789      40762  0.87%  0.10%  0.06%   0 Per-minute Jobs
220       55380     87807        630  0.07%  0.06%  0.07%   0 Compute load avg

[code]....

we recently upgraded our 3560 switches to the new 12.2-55 ios version but have not upgraded our 6509 because its ios is on 12.2(33)SXJ1. Not sure if this is related or not but it seems that after we upgraded to the later ios that the latency started.over the last 24 hours the spike is several times an hour and at least one a day that it hits the 90 - 100 % mark.is there a way that we can limit what snmp view but would not effect functionality or network?

View 2 Replies View Related

Cisco Switching/Routing :: Is It Normal To Have All Ports 4500 Switch (not Fiber Ones)

Apr 24, 2012

I was checking some things on my Cisco 4500 and spot checking some of the ports. Using CNA it says it is at 10. The web browser to the switch says Full-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000-TX on port 6i/18 The CNA says, so what would cause the difference?

View 3 Replies View Related

Cisco Switching/Routing :: C4500 - UDLD Normal / Aggressive With Multiple Neighbors

Aug 20, 2012

we're running 4 c4500 Switches at 2 sites connected to each other via Layer-2 crypto boxes and VPLS in a point-to-multipoint configuration which ist completely transparent (it's more or less like connecting them via a Hub - every switch sees the other 3 ones as neighbors). Our basic configs have udld globally enabled in aggressive mode. I wanted to disable that for the interfaces (routed ports) to the crypto boxes, because I don't want them in ErrDisabled for 5 minutes if there are connectivity problems in the VPLS-cloud (every switch also had 3 UDLD neighbors because of the P2MP configuration). In if-config mode I could do this simply with "udld port disable", but I thougt it would be better to run normal mode (not aggressive) to have the chance to use the UDLD show-commands. So I configured "udld port" for the affected interfaces.
 
interface GigabitEthernet1/2
udld port
!

[Code].....

View 6 Replies View Related

Cisco Switching/Routing :: How ACL Respond On Normal Switch 6500 When Applied On Respective Vlans

Nov 22, 2011

I am confused on how acl's respond on normal cisco switch (eg.6500) when applied on respective vlans. this is my scenario:on a 6506, i have 2 main vlans in question: Vlan 100 ( vendor1 - 172.16.100.0/24 ) & Vlan 200 ( vendor2 - 172.16.200.0/24 ). the requirement is,
 
 - vendor1 should be able to access/ping vendor2 end points

- vendor2 should not be able to access/ping vendor1 end points

Now, if i ping from a host 172.16.100.11 in vlan 100 to another host 172.16.200.21 in vlan 200, will i be able to get a successful response ?

View 4 Replies View Related

Cisco Switching/Routing :: C2960 USB Flash Device Works In ROMmon But Not In Normal Mode?

Aug 7, 2012

I have a 512MB USB Flash device and was able to boot the IOS on the C2960 from it.After that i tried to Copy the IOS file from the USB to the system flash, but it could not find the USB Device.At plugging in the device the systems tells me: "Transfer type 2 not supported" I configured the USB device in NTFS and FAT both are able to boot with the ROMMON, but the normal system does not accept them and i know i can do the copy over a TFTP from my laptop, but it is strange that rommon accepts the usb device and the system does not?

View 1 Replies View Related

Cisco Switching/Routing :: 7600 Router Performance / Policy Base Routing?

Mar 6, 2012

When mutiple Policy based routing configured on 7600 routers, did the router performace degraded with the number of policy based routing rules?Also, did 7600 running 12.x use per-flow based routing or per packet based routing?

View 1 Replies View Related

Cisco Switching/Routing :: Configure Routing Between 2800 And 3550

Sep 18, 2012

The layer 2 switches are connected to layer 3 Switch via trunks, and routing between layer 2 switch ports with configured SVI's on 3550. All working fine. Now I'm trying to configure routing between 2800 and 3550, I tried connecting both Straight Throught and Crossover cables to the 2800 Fa0/0 and Fa0/1 ports as well as the switchports on 3550
 
No switchport commands are configured however, the lights do not go on for both straight through or crossover cables. I tried connecting 1750 routers but same result. My goal is to have all the VLANS routed to the internet with configuring NAT translation the router.

View 2 Replies View Related

Cisco Switching/Routing :: IP SLA Between 2900 (15.0) And 2800 (12.4)?

Apr 11, 2013

I've problem with IP SLA probes between two different routers.2900 (c2900-universalk9_npe-mz.SPA.151-4.M4.bin) here is set "ip sla responder" only and 2800 (c2800nm-advipservicesk9-mz.124-24.T2.bin) here is set two type of tests "udp-jitter" and "icmp-jitter" - temporary, used to check for availability of 2900 router.As a result, I've what udp-jitter doesn't work at the same time icmp-jitter test is OK.Here are the settings of IP SLA tests
 
ip sla 281
icmp-jitter 172.25.28.1 source-ip 192.168.28.6 num-packets 100
tos 128
frequency 120
ip sla schedule 281 life forever start-time after 00:05:45

[code]...

View 3 Replies View Related

Cisco Switching/Routing :: 3750G Stack Slow Performance

Nov 19, 2012

I am currently having performance issues running a 3 x stack 3750G (different models) as a core for a network of roughly 12 x distribution switches. [code] As above, I have a 12 port Fibre switch and 2 x 3750G-48 port switches. [code] I tried to change the SDM to route but hit another issue where the 3750g-48 does not support SDM route so I had to revert back to desktop VLAN.Could the SDM Template be the reason for slow performance? If so which SDM Template should i use as this is the Core L3 switch.

View 5 Replies View Related

Cisco Switching/Routing :: 861 Router - Slow Internet Performance

Jul 21, 2012

I have a new 861 router which I have connected to my home broadband cable modem. Got it all working okay and I have access to the Internet but its not as fast as it is if I connect my laptop to the modem.
 
My Internet is 60mb (was 100 but I downgraded). When I cannot my laptop directly to the cable modem, I get 60mb download speed on speedtest.net If I connect the router's WAN port back to the modem then I roughly get about 40mb, sometimes even 50.
 
I do not have any IOS firewall configured on the router, just basic ACLs to stop SSH and TELNET from public networks. If I do enable firewall then my Internet connection halves itself. I have read around that this is the case with ios firewalls on these small routers so I've disabled the firewall but I still don't know why I cannot get full Internet speed.

View 5 Replies View Related

Cisco Switching/Routing :: 3750X Performance After One Member Reboots

Aug 6, 2012

Pure 3750X-48PS ip base stack.One switch reboots from a power issue (possibly the master switch? Haven't confirmed yet in the 3 cases I've seen)The rest of the stack stays running fine (as it should), the rebooted switch rejoins the stack just fine
 
What I've observed after this scenario takes place is that network throughput on any port in the entire stack is severely degraded.  Prior to the one switch rebooting, I can hit gigabit transfer rates going anywhere on any of the switches in the stack.  After one member reboots by itself, I typically hit a transfer wall around 5-20mbps in one direction and sometimes better going the other direction. I've only confirmed this on 3750X stacks and I can replicate it every time.  Newest code I've experienced it with is 12.2(58)SE1.  I have not seen confirmed reports of this on older 3750 (E, G, plain) stacks of which we have a ton of.

Rebooting the entire stack so that all 3750X members are coming up at the same time solves the transfer rate issue every time.  I would think there has to be a better way to get performance back to normal or prevent the performance hit in the first place.

View 2 Replies View Related

Cisco Switching/Routing :: 2800 Route Filtering

Apr 3, 2012

I have a router with two interfaces what i need to filter the HTTP traffic from one interface and the rest of the traffic through the other on my cisco router 2800.

View 3 Replies View Related

Cisco Switching/Routing :: Creating A VLAN On 2800

Nov 20, 2011

I have a problem to create a VLAN with a Cisco 2801.,I need to have base ports FastEthernet 0 / 0 and FastEthernet 0 / 1, in the same VLAN.
Basically I'm trying to switch access redundacion, now I have redundant switches in which I have the servers, but if one of these switches fails, and,coincidentally is where I have connected the router, the server runs out of internet connection.,I idea is to connect the FastEthernet 0 / 0 to a switch, and FastEthernet 0 / 1, to the other switch,but I managed to have these two ports in the same vlan, in order to have a unique IP for both FastEthernet ports,As I can do this?. do is a lot of documents using the switchport command, but this command is not available in my router, I tried different IOS, and nothing.,currently I have the following IOS: c2801-adventerprisek9-mz.124-24.T6.bin

View 2 Replies View Related

Cisco Switching/Routing :: Best Way To Block Website On 2800

Nov 26, 2012

I have a 2800 router and tried so many ways to block the unwanted sites on my office network.Like access list ip based, null0 routing and policy map. Faced issues with below config

1. Creating Access-list. very difficulty to block the sites with https those sites will be opend, and we cant block all the IPs
 
2. Creating null0 routing. it also a bit deficult the block maximum sites because we can't fiend all IPs for those sites
 
3. Policy map.. with policy map we can only 1site we can block, but not more than one..
 
I heard that port based routing or port based access-list are the best ways to stop the websites in my local network..for this one i need to map the site to unsued ports then i need to null rouging or need to create the access-list.

View 3 Replies View Related

Cisco Switching/Routing :: How To Block Sites In 2800

Nov 23, 2012

I have a cisco 2800 router.. (flash:/c2800nm-advsecurityk9-mz.151-4.M4.bin, Version 12.4(13r)T11) configured DHCP, DNS, NATING and Bandwidth restriction...And to stop some social network [URL] i configured ip route 66.220.144.0 255.255.240.0 Null0 (rang of facebook address) But still i am able to open facebook.com in my network...
 
ADMIN-II_2811#sh run
Building configuration... 
Current configuration : 1812 bytes
!
! Last configuration change at 17:26:33 UTC Sat Nov 24 2012
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec

[code]....

View 1 Replies View Related

Cisco Switching/Routing :: Upgrade IOS On 2800 Router?

Oct 16, 2012

Needing to upgrade IOS on 2800 router from c2800nm-advipservicesk9-mz.123-14.T7.bin to c2800nm-advipservicesk9-mz.124-15.T13.bin.  I noticed ther are several other files on the old code that may needed for booting up router but Im running low on memory.  The other existing files are ;

c2800nm-advsecurityk9-mz.124-3i.bin
securedesktop-ios-3.1.1.45-k9.pkg
  sslclient-win-1.1.4.176.pkg
 
Do I need these files for the upgrade or can i delete them when upgrading to 124-15.T13.bin. ?

View 5 Replies View Related

Cisco Switching/Routing :: 2800 / How To Setup Redundancy

Jun 13, 2012

How to setup redundancy on a 2800 series Router so that whenever it fails it will be routed through the MPLS router

View 5 Replies View Related

Cisco Switching/Routing :: 2800 Series VPN And PCI Compliance

Aug 21, 2012

I'm trying to turn off SSH version 1 & 2 to pass PCI compliance. Problem is, I cannot touch the VPN link between the two offices. I'm afraid the PKI certificate used for the VPN will be deleted if i zeroize the RSA key which seems to be the only way to stop the router responding on port 22. 
 
Here is the stuff from the running config related to the crypto map: 
crypto isakmp policy 1
encr 3des
authentication pre-share
group 2
[ code].....
 
I'm only CCNA so I'm not even sure if the certificate or RSA key is being used for the VPN link, but I can't tell from the running config that zeroizing it would be a good idea and not break the VPN. I'm open to other ways of disabling SSH, as we are able to just connect using a console cable. But it looks like denying port 22 with an access-list doesn't even stop the router from responding to the port.

View 6 Replies View Related

Cisco Switching/Routing :: SUP720 / Performance Increase From 30mbps To 400mbps

Jan 21, 2012

Supervisor Engine 720 options support centralized forwarding rates up to 30Mbps and distributed forwarding rates up to 400Mpps. I never understood the claim of forwarding rate logic in mbps. How i can load the 6509 box to check this forwarding rate?How can the performance increase from 30mbps to 400mbps? is this just because of DFC on all the line cards if yes does it mean i have to add the DFC on SUP as well .

View 3 Replies View Related

Cisco Switching/Routing :: Network Performance - 3850 Versus 2960

Jun 3, 2013

I have a network coming up for a switch refresh.  Management is pushing for 2960s and I would like 3850s.  We are running Cisco Voice and Video over the network.  I saw a few things that seemed to be in favor of a Layer 3 switch vs. a Layer 2 switch.  Some items like better performance due to switching based on IP vs. switching based on MAC.  Some information that will show the 3850 to be a better choice or that the 2960 is capable.

View 6 Replies View Related

Cisco Switching/Routing :: Nexus 7000 - Performance Affected By MTU Mismatch

Feb 24, 2013

Will a MTU mismatch in Nexus 7000 affect the performance ? I have a nexus 7000 at one end with MTU set to 1500 and Melanox bx5020(Storage switch) at other end with MTU set to 9600. Storage team is complaining about  performance issue related to slowness.Does MTU mismatch plays any role in slowness ??

View 2 Replies View Related

Cisco Switching/Routing :: Upgrading 2800 To Voice Capabilities

Jan 10, 2012

I have a customer who has a Cisco 2821 router with software 2821/HSEC/K9 and they wish to upgrade to C2821-VSEC-SRST/K9.From my understanding they want to use the same router but install an IOS with the capabilites it has at the moment but with voice. [code]How do I go about pricing this up and what upgrade sku's will do this?I am not to worried about the memory.Is it just a simple ios upgrade as the srst licenses are on a trust basis?

View 2 Replies View Related

Cisco Switching/Routing :: 2800 Series Stuck In ROM Mode?

Jan 25, 2013

My Cisco seems to be stuck when it boots up, with the following:
 
Upgrade ROMMON initalized

And it goes on with self comperessing image then an OK but then it starts loading again all over.

View 13 Replies View Related

Cisco Switching/Routing :: Is HWIC-2T Compatible With 2800 Routers

Oct 17, 2012

Just need to verify if HWIC-2T is compatible with the Cisco2800 routers?

View 4 Replies View Related

Cisco Switching/Routing :: 2800 / Clear Arp Table Every 5 Seconds?

Feb 19, 2012

I am in need to have the arp table cleared every 5 seconds or so on a 2800 router.  I was wondering how I might be able to accomplish this.

View 4 Replies View Related

Cisco Switching/Routing :: NATing On 2800 Router Series

May 22, 2013

I have Router 2800 series Global nating is configured on it.

ip nat inside source list 111 interface Dialer1 overload
!
access-list 111 deny   ip 192.168.1.0 0.0.0.255 192.168.0.0 0.0.0.255
access-list 111 permit ip 192.168.1.0 0.0.0.255 any
 
My object is that i want give internet access only for few users ip E.g   IPs addresses from range 192.168.1.0-10 can acess intenet access other all are deny.How i do this with ACL .

View 2 Replies View Related

Cisco Switching/Routing :: 2800 - How To Allow Communications Between Network Segments

Jul 22, 2012

I have a WAN router that's on 172.x.x.x segment, and another WAN router that's on a 147.x.x.x segments.How can I make them communicate, I would like to interconnect both segments to talk to each other.We are using a Cisco 2800 on both segments. 

View 8 Replies View Related

Cisco Switching / Routing :: 16 / 24 Port Ethernet Card For 2800?

Jan 11, 2012

I am looking a 16 or 24 Port Ethernet (NON POE) card for my 2800 Cisco Router NM-16ESW is EOL/EOS and the replacement is shown as SM-ES2-24 However SM-ES2-24 is not supported on Cisco 2800 Series.

View 2 Replies View Related

Cisco Switching/Routing :: 2800 - Network Data Flow Not Going Out

Jan 12, 2013

I am really new to Cisco and having a hard time with my Cisco 2800 series.
 
I have two sites connected with each other Site A and  Site B (Using the same Cisco 2800). Now site A can connect to site B on  the Cisco and the internal network, but site B can only see the Cisco  and not the internal network of site A. So all the traffic is coming in  to site B but can't break out of site B. I have tried everything I can think of but again my knowledge of Cisco is not good at all.

View 11 Replies View Related

Cisco Switching/Routing :: 2800 - Securing Router From Outside Access

Aug 19, 2012

I have 2800 series router which is directly connected to ISP. How can secure the router from outside access; I am totally new to the security concepts.        

View 2 Replies View Related

Cisco Switching/Routing :: 2800 Router Physical And Sub Interface

Oct 25, 2012

I have a pair of router Cisco 2800 running in HSRP, now I want to configure one sub interface with another sub net, Will my current IP on physical interface work or do I need to create two Sub interfaces for each network. Do i must need encapsulation on sub interface

Current Config:-

Router 1:-
interface FastEthernet0/1description Connect to LAN_SW1 Gi1/0/1ip address 192.168.1.13 255.255.255.0no ip redirectsduplex autospeed autostandby 1 ip 192.168.1.1standby 1 priority 90standby 1 preempt
Router 2:-
interface FastEthernet0/1description Connect to LAN_SW2 Gi1/0/1ip address 192.168.1.3 255.255.255.0no ip redirectsduplex autospeed autostandby 1 ip 192.168.1.1standby 1 priority 110standby 1 preempt 

For second network I do not require HSRP
Router 1:-
interface FastEthernet0/0description Connect to LAN_SW1 Gi1/0/1no ip addressduplex fullspeed 100
[ code]...
Router 2:-
interface FastEthernet0/0description Connect to LAN_SW2 Gi1/0/1no ip addressduplex fullspeed 100
[Code]...

View 3 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved