Cisco WAN :: Capacity Benchmark On 3825 Router
Aug 3, 2011
What is the maximum amount of traffic a 3825 router can take. I know that a 3825 is rated to handle half of a DS3/T3. We are planning to put a 50Mbps point to point metro Ethernet circuit between two 3825's and run encryption over that line. I just want to make sure we don't max out the router as I remember once a customer maxed out a 3825 with a ton or GRE tunnels and the router crashed every time they did their nightly data dump.
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May 8, 2012
I have a 1721 router with 3 equal routes to 0.0.0.0, using CEF for load balancing with universal load balancing algorithm. It doesn`t NAT, just routing. I wonder which is the maximum capacity of the router, since it should support up to 40000 connections to different destination IP. Is the limit set by the router resources (CPU, memory, ...) or a maximum limit of entries in the table FIB / RIB?
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Sep 25, 2011
how to measure the router or swith capacity?
Ex: Actually my problem is, i'm using Dlink 8 port switch, and 40 computers connected indirectly to that switch, few times getting issues like packet drops, internet connecting & disconnecting etc. so i want to know either the switch is capable or not.
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Jun 22, 2011
I have a laptop and a PC, both connected to the same router, connected to a Time Warner Road Runner cable modem. The laptop works fine whether it is in wireless or wired mode. The PC does not have wireless. When the PC is connected to the router, it's download speed is OK but I have zero upload speed - which of course kills my ability to do almost any online or even LAN task, including browsing and file transferring over LAN.When I plug directly into the modem, bypassing the Belkin, the PC connection works just fine. It only encounters errors when going through the router, but every other computer in the household works fine through the router (3 laptops, work great either wired or wireless using same cables and ports as the PC). The PC worked fine in my old apartment with a different router, but as soon as I got to this one, nothing.
Both comp's have WinXP Home Edition. The PC has a Realtek onboard NIC, called PCIe GBE Family NIC in Device Manager. Have tried uninstalling and reinstalling it, and using multiple driver versions, to no avail. The Ethernet cable is known working. The router is a Belkin F5D9230-4 Wireless G Plus MIMO Router with fully updated firmware.All my firewalls are turned off, including that of the router.Everything is up to date, I have done full virus and malware scans, power cycled everything, and I just cannot solve this problem.
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Jul 10, 2012
Reciently I bought a WRT120N Router to get a better internet connection and to have more capacity to connect different wireless devices, because the modem from my internet provider company is extremely restrictive.
I use an iMac, a Notebook with Windows 7 and a Netbook with Ubuntu 11.04, besides different devices (iPhone, iPod, PS3, Kindle). Although when I configured the router I connected every devices simultaneasly, with better signal quality than before, after using it for a couple of days I found that it disconnects itself, I can't access internet, and my only solution it's to switch it off and on.
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Feb 24, 2011
I am having a Cisco 7406 VXR router. I want to know what is the max. MPLS link capacity that can be terminated on the link? We are planning to upgrade the MPLS link to 450 Mb..so was just wondering whether 7206 will support or not..
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Feb 1, 2012
Where can the following information be found?
1. CEF table capacity (maximum)
2. Route table capacity (maximum)
I can issue "show ip cef sum", "show ip route sum" to see the current usage.
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Jun 26, 2012
I want to configure PAT on the router I have no configuration yet
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Nov 6, 2012
We need to upgrade the RAM on our 3825 Cisco Router. Currently, it's 512MB and we want to upgrade it to 1GB. So do I just order another 512MB DRAM Memory? What is the part number that I need to order?
Here is the show ver:
Cisco IOS Software, 3800 Software (C3825-ADVENTERPRISEK9-M), Version 12.4(24)T2, RELEASE SOFTWARE (fc2)
Technical Support: [URL]
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Mon 19-Oct-09 21:05 by prod_rel_team(code)
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Mar 25, 2012
We use a 3825 router to screen alot of the junk from the internet side or our firewall. Its worked well for the last 4 years buthas rebooted multiple times in the last month for no apparent reason.At this point I think I would prefer to replace it.Our current internet link is 100Mbps and this router handles that quite well. Is there an equivalent that I should replace it with, or should I just buy another 3825 ?One with an OOB management port would be nice.
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Mar 8, 2011
I want to configure HSRP between two different series routers. In my case the router are 3825 and 3925.
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Feb 26, 2013
I am having Cisco 3835 with 2 builtin Gig ports , now We need to add two more Gig ports additionally , which Ethernet module would be recommended (model) ?
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Aug 4, 2012
I put a second HWIC-4ES in a 3825 router and it does not work, only work the first card that is inserted, I use the slot 0 for it, the 0/0 and 1/0 work with serial card only if I put the HWIC-4ESW in this slots the router does not work, only work in 0/2 and 0/3 but only one, I need to know if there is a command to active it because the data sheet in CISCO indicate that this model of router support 2 HWIC-4ESW. url...
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Jan 22, 2013
After formatting the CF, the router is able to see the flash without a problem. I copied files to the flash - still able to see the contents okay. The problem ia that if i restart the router with the new flash, i get this error:
Jan 22 17:44:12.454 MSK: %SYS-5-CONFIG_I: Configured from console by bt_admin on
vty0 (10.10.10.44)
Jan 22 17:45:41.847 MSK: %SYS-5-RELOAD: Reload requested by bt_admin on vty0 (1
0.10.10.44). Reload Reason: Reload Command.
System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
Technical Support: [URL]
[code].....
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Jun 12, 2011
imagine IOS image required size lists:DRAM 256 / 64 Flash
Then show ver on my router 3825 lists the below. Technically speaking the below should have the 64M flash required right? Why again it shows as 62592K and not 64000K?
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May 29, 2011
We have a cisco 3825 router with OS version 12.4 and one VWIC2-2MFT-T1/E1 card at Slot 0. Now I have to add one more card of the same type in the router.
I need to know the steps or process to add the the 2nd card in the router.
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Mar 7, 2012
we have a Cisco 3825 router which does not work well with a DSL modem(ISP provided). I have configured the Gi0/0 port of the router to plug into this DSL modem but it does not ping to the ISP gateway. If we do a shut/no shut on the interface then it work fine for about 30 secs. Sometimes even for 1 hr. Then the packets drop and we cannot pass any traffic through this interface.
Now, if the ISP connection is terminated on a computer it works fine. It works fine without dropping any packet.I have tried various options like using a straight/cross cable. I have tried to configure the interface negotiation for 100/full, 100/half, auto/auto and almost all the options.I have also tried to interconnect the devices using a L2 device like a HUB. Nothing works.
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Apr 4, 2011
I am trying to copy a new IOS image to a 3825 router. I have verified that there is significantly more free space in flash than is needed to accommodate the image (83 MB free, new IOS is 34 MB). I have also verified that the router has the necessary hardware requirements for the new version of IOS, though it is a moot point with this issue. When I try to copy the image from either TFTPd32 or the Solarwinds TFTP server,the copy gets to about 97% and then shows a mixture of timeouts and out-of-sequence packets (.'s and o's) before telling me the copy job timed out. I have tried bumping both the "timeout" and "max retransmit" on TFTPd32 to 2-3 times their defaults, but it made no difference. The router and my laptop are connected to the same 3550. I have also tried two FTP servers but all I get is "Protocol error" on the router when I try to use either. I see the following in the TFTP debugs: [code]
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Apr 3, 2012
I have AIR-CT2504-5-K9, with 5 access point license support. I buy capacity adder license LIC-CT2504-5A for add 5 access points more. When i try download licence file from tftp server on WLC system i see message "License 1 Failed 1" on WLC. TFTP server message downloading OK.
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Jan 8, 2013
i have AIR-CT2504-5-K9, with 5 access point license support. I buy capacity adder license LIC-CT2504-5A for add 5 access points more. When i try download licence file from tftp server on WLC system i see message "License 1 Failed 1" on WLC. TFTP server message downloading OK.
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Sep 11, 2011
Any equivalent show command to get the "FIB TCAM Usage" on An ASR 1006 ?the "show platform hardware capacity forwarding" does not work on ASR1006 Example on 6500: Router# show platform hardware capacity forwarding.
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Nov 30, 2011
I am seeing the following log messages appear on our border edge 7600 router (SUP720-3BXL) The messages seem to appear when tag switching has been enabled on the interface, so somehow related I presume. The MPLS forwarding table is very small however. [code]
I can't see anything that is using up the ACL_TCAM HI BANK using "show tcam global acl" There aren't any ACL's applied to any of the interfaces, or policy-maps. The only ACL's in use are for SNMP, ntp, and VTY. These are very small any way. Interface Gi1/22, and 1/1 have tag switching enabled. [code]
The router has a full BGP routing table learned via an upstream (EBGP) peer neighbor, and an IBGP peer. The CPU utilisation seems fine, as is memory usage. CEF seems to be running okay. It's currently running [code] Are prefix lists part of TCAM? Is the router over-resourced holding a full bgp routing table?
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Jan 16, 2012
I have been trying to understand from a long time about the throughput capacities of variety of Cisco Routers and Switches. Have searched over a million pages on cisco.com for data sheets/documents/etc. but havent succesfully got a single document highlighting all of what i need.
I have got queries on the below issues:Which model of Router can support upto 2Gig's of WAN Internet connection running BGP? Any list of routers and switches supporting variety of throughput's from 1 MB to 1 GB.I have heard some experts stating "Switches don't have throughput concerns as they switch the traffic and don't need to route traffic" How true is the statement?? and if it is, Why do we require 6500's instead of 3560 Distribution Switches.
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Mar 7, 2013
Can LMS 4.1 give a report for port capacity in stack switches? We are starting to have issues where our techs are going out and plugging devices into switches and the switches are getting full. We would like to be able to see how many ports are left in each switch.
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Dec 6, 2012
I have two 3825's. Each has it's own ISP connection. Nat is configued for both. They have an ethernet connection between them and I'm running OSPF between the two so the routes propogate. I have qty 11 Dialer interfaces configured on each router (each router has an exact copy of the other routers dialer interface). However, I only want the Dialers up if the ISP connection on the mated router goes down. Much like HSRP I need one to preempt and be active if both ISP connections are up. When one goes down the other Dialers must come up. Each dialer sends a Dynamic DNS host name and IP address pair to DynDNS.org. So I cannot have both up otherwise the DNS names will bounce between ISP#1's IP address and ISP#2's IP address (back and forth). Let me know if any option exists to make this happen. As an aside the ISP's are providing me DHCP addresses so I cannot work off of an IP, it has to be the physical interface (i.e. Gi0/0).
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Apr 26, 2013
This is my Cisco LAB environment used for study but also in production for daily use. I am trying to setup a double-NAT network with just one IP from my ISP through the ASA & 3825 going to (2) end nodes and multiple ports for port forwarding. It is currently working but only as simple PAT and I cannot initiate FTP from the outside. removing the router, but this is my study LAB and it's a bit unconventional for learning purposes. I attached the diagram and need parts of the config.
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Jan 24, 2013
When enabling the WAN Traffic Meter on my RV180 with firmware 1.0.1.9, my download speed drops to half of my capacity.WAN Traffic Meter disabled: download around 13 MB/sec, WAN Traffic Meter enabled: max 6 MB/sec.WAN QoS is disabled!
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Mar 27, 2013
When we list the available features for each license package on the cisco nexus licensing guide (page 5) [URL]
The N55-BAS1K9 provide unresitrcted OSPF routing capabilities. but on the Cisco web site they seen that the N55-BAS1K9 provide a limited (256 routes) learned via OSPF. N.B : the hardware plateforme is NX5K 5596UP with L3 Routing module 160Gbps.
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Apr 15, 2013
I am trying to configure site to site vpn between Cisco ASA and Cisco router 3825, I need to establish the vpn connection with an interface that has security level of 90.I followed the procedure shown in the following link: URL.
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Apr 17, 2012
I have a router cisco 3825, it is configured with netflow for monitoring traffic with WhatsUpGold, but I can't monitor this router I don't know what is the problem.Device: Router Cisco 3825 IOS: C3825-ADVENTERPRISEK9-M 12.4. [code]
I have a switch4500 12.2 and a router 2801 IOS 15.1 and this device work well with the WhatsUp but these devices have the same configuration.I see diferents ouputs when I use show ip flow export, this output is for a router that work well with WhatsUp. [code]
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Oct 2, 2012
My SIP provider is not convinced that my ASA and Edge Router is not altering the SIP packets. On the ASA I've removed the inspect SIP, and H323, what else needs to be done to make the firewall not mess with the SIP Traffic.
Packets are flowing in/out.
access-list hbg-outside-198_access_in extended permit udp host <SIP HOST> object sfipoffice_o eq sip
access-list hbg-outside-198_access_in extended permit udp any object hbgipoffice_o gt 49152
access-list hbg-outside-198_access_in extended permit udp any object hbgipoffice_o lt 53246
Here are my Policy Maps.
policy-map type inspect dns preset_dns_map
parameters
message-length maximum 512
policy-map type inspect dns migrated_dns_map_1
parameters
message-length maximum client auto
[code]...
On the 3825 Its jsut a pretty simple config that jsut routes packets form one interface to another, all Public Addresses, so no NAT on it.
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Apr 10, 2013
I have a peculiar issue with a router whering I get the message in the Show Environment as below.
sh environment out
Redundant Power System is not present.
SYS PS1 is present.
Type: AC
AUX(-48V) PS1 is absent.
Fan 1 OK
Fan 2 OK
Fan 3 OK
Fan Speed Setting: Normal
Alert settings:
Intake temperature warning: Enabled, Threshold: 55
Core temperature warning: Enabled, Threshold: 70 (CPU: 95)
Board Temperature: Normal
Internal-ambient temperature = 22, Normal
CPU temperature = 37, Normal
Intake temperature = 22, Normal
Voltage 1(3300) is Normal, Current voltage = 3300 mV
Voltage 2(5150) is Normal, Current voltage = 5210 mV
Voltage 3(2500) is High/Low, Current voltage = 2168 mV
[Code]...
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May 30, 2012
How i can view the capacity throughput (backplane) of core switches (6509)? How i know much is in use?
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