We have a 1841 router and would like to enable netflow. Will this degrade the router's CPU and memory performance.
1841>sh verCisco IOS Software, 1841 Software (C1841-IPBASE-M), Version 12.4(1c), RELEASE SOFTWARE (fc1)Technical Support: [URL] Copyright (c) 1986-2005 by Cisco Systems, Inc.Compiled Tue 25-Oct-05 17:10 by evmiller
ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
1841 uptime is 1 day, 4 hours, 47 minutesSystem returned to ROM by power-onSystem restarted at 11:04:25 MYT Mon Jan 10 2011System image file is "flash:c1841-ipbase-mz.124-1c.bin"
Cisco 1841 (revision 7.0) with 114688K/16384K bytes of memory.Processor board ID FCZ113311Y62 FastEthernet interfacesDRAM configuration is 64 bits wide with parity disabled.191K bytes of NVRAM.31360K bytes of ATA CompactFlash (Read/Write)
Now the DSL was installed a while back for a different need and now that need is gone. What Id like to is have the Cisco router do performance routing and send out internet traffic to either its own external IP or send it over to the DSL if it can get a better response. Presently, Since the Cisco is my gateway, the DSL line is sitting idle.
I recently inherited a small network. There is an existing 1.5mbps Internet connection (fa0/0) (includes MPLS as well/same provider). We added a new ISP that allows for 50mb down/5mb up. I added the new ISP to fa0/1 and modified the NAT overload statements accordingly. I alo changed the default route to ONLY use the new, faster ISP connection. Using speedguide.net, I am only able to get 6 to 10mb down, most of the time. if I plug a laptop into the cable modem then I get 37 to 50mb down. Why the 2811 is so slow?
I have attached the config and various show outputs (nat, sh ver, memory, etc.). the file called "latest logs" contains a "sh ip traffic, sh int switching and a sh proc cpu sorted". [code]
I'm experiencing quite a slow vpn performance. I've tested different scenarios.
* Windows XP with built-ín pptp client and Shrew ipsec client * Linux built-in pptp * wireless and wired connections
I never managed to go above 1MBps neither with windows or linux. I managed to go up to 3MBps using the Shrew client.I've also checked mtu settings and everything seems to be fine.
i am feeling an issue related to 2 x 6509 with fwsm.
Mod Ports Card Type Model --- ----- -------------------------------------- ------------------ ----------- 1 6 Firewall Module WS-SVC-FWM-1 2 48 CEF720 48 port 1000mb SFP WS-X6748-SFP 3 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX 4 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX 5 5 Supervisor Engine 720 10GE (Active) VS-S720-10G
Hw Fw Sw Status ------------ ------------ ------- 4.3 7.2(1) 4.1(2) Ok 1.12 12.2(14r)S5 12.2(33)SXH3 Ok 3.0 12.2(18r)S1 12.2(33)SXH3 Ok 3.0 12.2(18r)S1 12.2(33)SXH3 Ok 2.1 8.5(2) 12.2(33)SXH3 Ok
on fwsm we have different dmz for different application. mostly of Oracle (1521 port) to application means seperate one. problem is oracle people reported the slow performace when exporting dump from once vlan to another. before that they are using 3com technology (network) and on this its ok. time difference is double from old to new.
i had sniffed the traffic also and found alot of TCP OUT OF ORDERS errors. i read that this is the bug which is resolved in 4.0.
my switches layer 3 intervlan routing performance is dropping.What would cause this performance drop? I am not pummeling the switch with massive transfers constantly like an enterprise envirnoment would do or a colo center. [code]...
I just moved into a new apartment. It has Comcast performance internet (16mbps). However im not getting anywhere near that. I have it connected via ethernet.
I tried speedtest.net and my result was 1mbps download. ping of 225. Web windows take forever to open
I have a shitty WRT54G right now, and its slow as heck. I was thinking of getting this:
URLS ,I know the later is a modem and a router as opposed to just a router in the first link.I have comcast, I hear it uses Docsis 3.0 right? Mine is a 2.0 modem right now.
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.
I have an RV042 VPN tunnel with an RV082.The RV042 has a public IP Address obtained by PPPoE, the RV082 has a public IP Address obtained via Static IP.The problem I see is a really slow performance. Both internet conections are idle and the performance is about 2 or 3 kbyte/s My question are if I should I enable any of this:
- Agresive mode - NAT Traversal - IP Compresion - Dead Pear Detection
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.
I'm experiencing quite a slow vpn performance. I've tested different scenarios.* Windows XP with built-ín pptp client and Shrew ipsec client* Linux built-in pptp* wireless and wired connections? I never managed to go above 1MBps neither with windows or linux. I managed to go up to 3MBps using the Shrew client.I've also checked mtu settings and everything seems to be fine.
Just bought the EA4500, updated with the latest cloud firmware. but Wan performace is BAD. download with router 31.56Mbps, without approx 120 Mbps, tried changing MTU from auto to 1470 but no succes.
I have an 1841 running Advanced Security IOS (12.4(25) I think, have to check when I get home) that I'm using to learn about CBAC and IOS' firewall functionality. Its external interface is connected to my Windstream DSL modem in bridge mode, and the router is doing the PPPoE authentication. It's also doing NAT for my internal network, and is acting as a firewall using CBAC inspect statements and ACLs.
Everything is working at at least a baseline level: the DSL authenticates and connects, and machines on the inside can browse the web. The problem is that browsing to some sites is slow or times out. Not all sites, just some. Latency seems to be okay when doing pings. The problem seems to happen with https connections, but again, not all of them. Gmail works fine (I have it set to always use https), while my bank and credit card sites either time out or take minutes to load.
I have an "inspect https" line in my config, and have allowed https through my outbound ACL.
I'm looking for next steps for troubleshooting this. I've check CPU utilization and it's very low; not sure what else it could be. I only have a few inspect statements, for the common stuff: tcp, udp, icmp, pop3, imap, dns, tftp, ftp, and ntp.
I aquired an 1841 recently from work. I am trying to use it as my home router. I have set it up with the very basics (dhcp wan, dhcp pool for lan, nat). It is grabbing an address from Comcast. It works, ran speedtest and the speed looks fine at 25/3 or so.
The problem is when I am surfing the net. I'll go to a site like Youtube. It will take forever to load the site, never play the video. I have tried other sites, Autoblog, Break, etc. It seems like anything with a lot of multimedia. If I go to MSN, the first time it will take about 10 seconds to load all the pictures, after that it is instant (probably cached).
Then, if I wait a few minutes, go back to the same site, sometimes it'll be just as slow, sometimes it'll work fine. I have checked a few of the cisco logs and it doesn't show any drops or errors that I can see. If I run a constant ping to something like google.com while it is slow loading, the response time remains normal around 25ms.
I set up my other d-link home router and it works fine with all sites, same speeds from speedtest. I tried plugging a computer directly into the Cisco and same slowness issues.
I'm having slow performance thru a Site to Site VPN. I have an ASA 5520 in each site with the version 8.2(4) in both ASA's. I have a 20Mb internet service in one side and in the other side I have 50Mb. When I transfer a file from the Sita A to Site B I get a transfer rate of 130KB/S.
How to get any numbers regarding performance for acs v.5 ? I have looked through the documents but couldnt really get any idea. Especially in a WLAN environment - how many clients can use one appliance as primary without putting the primary under strong load ?
I have spend half day to look up this question in cisco official web site, but get nothing . Any infomation about vpn performance of 3925 router？Produce : cisco 3925 ( Cisco 3925 Security Bundle w/SEC license PAK )Question is , how much ipsec vpn tunnels can be carried as a vpn server of this bundle ? if more licenses may be bought, how much most tunnels can be held？
Currently running a pair of 5520 as VPN routers. running 8.0.3, been using only Anyconnect SSL VPN for end users. These boxes do nothing else except serve VPN clients.However, recently we tried testing some IPSEC clients and are realizing that the Anyconnect SSL VPN clients is about 10x slower than the IPSEC client.From my house, downloading either CIFS or FTP, I can pull pretty close to 1.0mbps, while using Anyconnect, I pull 0.1mbps. What could be causing this slowdown? Should SSL VPN performance be on par with IPSEC? Clients all are windows 7, 64 bit. and the testing is being conducted on the same device.
I would like more information of performance to 7600 router with the SP-720, how many sessions full bgp routing it supports? I have 4 links 1 GB and a throughput of 900 MB.
With the current (A5) ACE 4710 lic setup, does the "X gigabit per second appliance throughput" that is licensed affect: -
A) Only "appliance" i.e. load balancing traffic, any other normal routed traffic is not included in the limit
or
B) Is it an overall throughput limit on the interfaces i.e. includes all traffic not only load balancing traffic but also normal routed traffic crossing the appliance
Looking at a scenario where the lic size I need for HTTP load balanacing would be one size if A) but would need to be much larger is B) to accomodate out of hours routed backup traffic crossing the ACE 4710
I have a client that uses the ASA 5520 as both a firewall and VPN termination device. Day to day VPN usage is 30-50 users and the memory (512 MB) is typically at 50% while the CPU is mostly under 30%. I've suggested the RAM be upgrade to 1GB.The client would like to add a large block of VPN users which could see 250-300 concurrent users. What kind of a system resource hit should the expect with this level of load?
I am having problems with CPU load on 2811 with AIM-VPN-II. There is a GRE+IPSec over E3 WAN link and the authentication is done using RSA, but even that there is around 10Mb/s of traffic I have a 70 - 85%. I also have another WAN link with router 2811 that doesn't have a AIM-VPN, and that one reach 95% CPU once the traffic goes up to 5 Mb/s.
Are there any recommendations that RSA authentication is not supportted for hardward encryption? It worries me, becouse have more sitautions like this.
I have a fairly large area to cover with wireless, and set up a second router to act as a repeater. The signal works great, other than being extremely inconsistent. Sometimes I get a speedtest of 18 ping and 7 mbps DL to a nearby server, and 10 seconds later it's 300 ping and 2 mbps. There are no problems when using the primary access point without the repeater. Where should I start in troubleshooting? I can't see why there would be such terrible consistency since much of the time the signal strength is fine. It's purely a problem of dropping the connection often.
I continue to have significant performance and random reboots with DIR-825 router (hardware: Rev A1; Firmware: 1.13NA). My ISP has checked the lines to my cable modem. If I connect any of my laptops or PCs directly to the cable modem and work off the direct connect, all works fine with no problems for many days and even mutliple weeks. So, the router seems to be the bottleneck/issue.
I've tried multiple settings changes as listed in the forum here. My setup is fairly simple and detailed below.
Setup -> Internet: -- Dynamic IP (DHCP) -- I have disabled "Enable Advanced DNS Service" -- "Use Unicasting" is enabled -- I have primary and secondary DNS servers set [Code]....
I'm new here but I'm not really new to networking. I manage small network but I just found out that I have some issues regards to speed.So what's the problemAs a main router/fw we have Fortigate 100A which then goes to a core switch SRW2016.This switch then handles two VLANS.The problem is that I have ports 5 assigned to VLAN 100 and port 6 to VLAN 101. They relate to DMZ1 (VLAN100) or internal (VLAN101).When I connect small unmanageable switch to port 5 I get very low performance (20kB/s internet, 2-3MB/s LAN) however when I plug in PC directly, I'm getting full speed.Port 6 with VLAN101 has the same unamangeable switch but no issues.Obviously you're thinking it's the switch - well I've tried replacing it allready. It's not the switch.Both ports have the same configuration (relating to their VLAN) but resolving it goes beyond my knowledge
i want to know if someone here know how to observe the network performance? and u know what kind of software that can do the observation on the network performance?
I have a Cisco 881W router. It has historically run IOS 12.4 (20.T3) without issue. I recently upgraded the IOS to version 12.4 (24.T5). Once I made that upgrade, my ability to fully throttle my downstream bandwidth became seriously limited and variable going from a steady 6Mbps to an unreliable 2-3Mbps. No other changes were made to my environment. The degredation in performance was so bad that my AppleTV would no longer stream Netflix or YouTube.I downgraded back to the original IOS 12.4 (20.T3) and the downstream bandwidth and variability issues disappeared. As well, my ability to stream movies or videos with my AppleTV on Netflix or YouTube returned without issue.I wonder if upgrading to IOS 12.4.24.T5 enabled some new commands that I'm not catching or there is something else at play that I'm totally missing.
