My comany is planning get full bgp table from our providers we have mutliple egress providers in order to load balance we are looking for a full table from all of them what would be minumu requiremts we have all edges as 6500 with sup 720 ,is there any memory requrements that need to be upgraded ??
In datasheet of WS-SUP720-3B - link- was said that are only supported around 256K routes (fib?rib?).With this value I can't get 2 full bgp - that is around 850K ..
The supervisor is that control this or just memory ? I said this because I have a 7204-npe-g1 whith 2 fullrouting and 1G of and he are ok..
I've inherited a project building an internet connectivity solution for a large corporate. It has its own AS and its own PI space. They are putting in 100Mbit connections from 5 different Tier1's , taking full internet routing from each. Cisco ASR1002's have already been specified and purchased for the job. I'm not familiar with the ASR platform at all - is it up to the job with full routing tables? multiple instances of full tables ? (not likely to put all 5 into one box!)
I'm looking for a Cisco device to run a full BGP table with a 60Mb link. And one of the main restrictions is that my traffic is almost 100% real-time (voip). So the average packet size is small. Today we own a Cisco 7204 NPE400 with 512Mb RAM. I think even though I upgrade it to a G2, due to the small average packet size, the router will be near to its limit. Maybe a Cisco 7300 NSE-150? Or should I think about a switch?
I have recently installed a Cisco 2911 ISR G2 with the default 512 Mb DRAM intending to eBGP peer. I ordered the 2GB upgrade RAM however due to time constraints on backordered parts, I fired up this router and eBGP peered without it. The Peer advertised the whole route table with 400,000+ routes. The BGP session came up then the router crashed due to not enough memory. The router disabled IP CEF due to insufficient memory. I disabled IP CEF permanently and have been running the router in this condition for 3-weeks with a stable eBGP session. This resulted in no CEF, 25% CPU during light traffic, 89% memory, and 50% CPU when traffic is around 30 Mbps through the router.
I am experiencing a hit to the throughput resulting in a lost packet and practically a brief traffic stall roughly every minute. This hit is so quick that it does not always result in packet loss and IP traffic sessions are not reset. I do see this on my live bandwidth graphs that the traffic takes a dive every so often, roughly 1-minute.
I initially thought this problem could be L2 to the upstream eBGP peer but all interfaces are clear of errors. I also thought this could be the BGP session going down, however, It is always up. I thought this could be duplex mismatch on L2, however its solid and no logs on either end. Funny thing is pinging thr router from both the LAN side and the WAN side results in the same packet lost every minute or so.
Even though the CPU and memory always stays the same at under 20-50% CPU and less than 89% memory, do you think this could be the BGP Scanner walking the routing table every minute?
I have a question about filtering incoming bgp route updates from an internet provider. This provider sends the full internet routing table and default route and on an incoming prefix-filter on the customer switch (C6509-sup720) the default route is only accepted.What happens on the 6509 switch when the BGP peer flaps?Does it need to process all the internet routing updates, and if yes probably it cannot handle all these updates?What happens with the CEF table, will the switch install the routes first?
I want to get a Cisco router for central point of 100 GRE tunnels and total 10G traffic coming from those tunnels. I used 6500 but its CPU became high in less than 2 G traffic. Can you identify me a suitable router for this purpose. I think the router must process the GRE in hardware.
We have a couple of 6500 series switches and have 3 BGP peerings to each. The 6500 series switches are loaded with WS-SUP720-3B Supervisor Engine. I believe there is a limit to the number of IPv4 routes WS-SUP720-3B supports(256,000). We also have "soft-reconfiguration inbound" configured on the BGP peerings. Thus when I do a "show ip bgp A.B.C.D" it displays three routes from 3 BGP peers and it displays an additional 3 "received-only routes" which I think is due to the "soft-reconfiguration inbound" configuration. We currently filter inbound routes from the BGP peers to be between /0 and /27
We are now looking to add another 2 BGP peerings. I am not too sure if the WS-SUP720-3B will be able to handle all the BGP routes. Is this limit of 256,000 IPv4 routes due to Processor memory limitation or is it software related? Would removing the "soft-reconfiguration inbound" save me some memory ?
we have 6500 cisco switch as a backbone switch in universty. When ı want to look mac addres table , it does no show all mac address.ı mean if ı type ;show mac address-table there are not all mac address.
We want to configure the "mac-address-table synchronize" command on our 6500 series switches to ensure that the CAM tables on our DFCs are in synch with the PFC on the supervisor modules. url...it is recommended that we disable the routed MAC purging with the mac-address-table aging-time 0 routed-mac global configuration command. What is a routed mac entry? Are there any issues with running that mac aging-time command?
We also plan to run this command "mac-address-table aging-time 14400" to keep our ARP and CAM tables on the same aging time to reduce unicast flooding on our network. Can we run this command with the "routed-mac" command above?
I am little confused about the location of FIB table and adjacency table in both cisco 6500 series and fixed ports switches .In case of 6500 series switches
"Central CEF mode:The CEF FIB and adjacency tables reside on the route processor,and the route processor performs the express forwarding. Use this CEF mode when line cards are not available for CEF switching, or when features are not compatible with distributed CEF."
If line cards do no support CEF, then FIB and adjacency tables are built and are located on route processor( control plane ). Data plane operations are implemented in software and route processor performs those operations.
Some Cisco switches actually use different hardware to control the different planes. For example, the Cisco Catalyst 6500 is a modular switch that uses the Multilayer Switch.Feature Card (MSFC) for control-plane operations, and the supervisor Policy Feature Card (PFC) for the data-plane operations.
Supervisor module has has MSFC and PFC. MSFC implements control plane operation where as PFC implements data plane operation.But the first paragraph says in Central cef mode, both data plane and control plane operations are implemented by route processor. [code]
Do these switches implement the Central mode cef in same way as mentioned above. i.e
"Central CEF mode:The CEF FIB and adjacency tables reside on the route processor and the route processor performs the express forwarding. Use this CEF mode whenline cards are not available for CEF switching, or when features are not compatible with distributed CEF."Or fixed ports switches such as 3750 implement data plane operation in hardware where FIB tabe and adjacency table are maintained on Data plane.
I have 2 x Cisco 3845 each one with a DS3 circuit, both running c3845-spservicesk9-mz.124-15.T3. In each of them I have one pvc provided by my carrier and I received the following info to configure:
The WCS haven't have new event since the count of event goes 40000.And, the wcs-3-0.log shows INFO[stspoll] Event Queue seems full.In the FAQ which says:#The WCS keeps the last 40,000 events in the system and clears them up after seven days. An event or alarm can have 1000 bytes on average.shouldn't it clears them up after seven days? how to clean events by manual?
I try to connect 3750X (15.0.1(SE3)) with PC or router that is interface card is fixed to 100Full on 3750X-12S-E I plug a SFP-T, this SFP is ok: [code]
But with Speed and duplex fixed the interface is up arround 1-4s and move to down and errer-disable.
We have 4 remote locations, all these locations are connected to Head Office via Site to site VPN tunnels, i have one tunnel to each location form head office,
HQ 10.10.1.0/24 (Cisco 851) Site 1 10.10.2.0/24 (Cisco 861) Site 2 10.10.4.0/24 (Cisco 861) Site 3 192.168.10.0/24 (Linksys RV4102) Site 4 192.168.1.0/24 (Some Linksys )
We are using these VPN tunnels for IP phones at remote locations, Every thing works fine except when some body want to make a call form any remote locations to another remote location e..g site 1 call site 2 there is no audio, to over come this problem we need to a fully mesh network, each location should be able to access each other or in other words we can say that i should be able to ping LAN IP of Site 1 form Site 2, so to get it working i need to create vpn tunnel form each location to each location, in that way we have to create 4 tunnels in each router, or we can have DMVPN, but due to mix of equipments we cant have DMVPN, because only cisco 851 supports DMVPN, not even cisco 861)
So my question to all experts is that there is any way i can do some thing in HQ, so that it can route traffic from one remote site to another site, or it can work as hub so that i dont have to create 4 vpn tunnels in each router, because of the cisco 851 and cisco 861, i can have only 5 VPN tunnels, if i will create 4 VPN tunnels in each router i will be ran out very soon,
I have some issue with a newly purchased ISA 570W; we are moving from a Cisco RV220W to this new ISA570W but the WAN interface will not auto negotiate on 1000 Mbit. It is only possible to forced it for 100 Mbit, but then the Internet connection is really slow (properly collision) 5 to 6 mbit up and download on a 200 Mbit ISP connect, our "old" RV220W run auto negotiate 1000 mbit FULL on the WAN interfaces and we have no issues with the bandwidth on this box.
I am running LMS Prime 4.2.2 on a Cisco UCS Red hat The Critical Message Window is showing that the /opt/CSCOpx is 60% full. This is usually only 9 to 10% .I have done 2 log rotation and the files are below warning size. [code]
Because the /var is 99% full, I have problems with taking backup. I have also problems with login into the web-page. I’m authenticated, but then I get: User Role is empty.
I want to receive full BGP in my switch 6506 with the follow characteristics: cisco WS-C6506-E (R7000) processor (revision 1.2) with 458720K/65536K bytes of memory and Supervisor Engine 720.When I configure the session BGP in my router with me peer the switch begins to work slow and restarts.
We are running ACS 4.1 on Windows 2003 server. The disk filled completely up with years of log files. We have freed up space but now none of the services will start back up either automatically or manually.
I need to work with the full tunnel feature of the IOS SSL VPN using a Cisco 1841. Here is what I see...
-I login to the portal page and click the "Start" button for "Tunnel Connection (SVC)" -Security Alert message "This page requires a secure connection which includes server authentication. The Certificate Issuer for this site is untrusted or unknown. Do you wish to proceed?" I click yes. -Anyconnect says "Please wait while VPN connection is established" -Anyconnect error "The certificate on the secure gateway is invalid. The VPN connect will not establish"
when I log onto the PC, I have to reset the local network adapter in order to go online - it solves the problem every time. The real issue is with the laptop. It keeps dropping connection and, even when it shows up with a full signal, it can't connect to the internet and, when it does, it's really, really slow. I've tried resetting the IP address, I've gone in to make sure the network isn't hidden, I've checked the WEP key, I've even had it right next to the pc (which works only marginally, occasionally).We can't afford to buy another new laptop and I can't work out what the problem is.
We have a BGP / OSPF configuration as shown in the topology picture. When the connection towards Internet is taken down, we expect the traffic to be forwarded toward WAN 2 (preferred) or WAN 1. The problem is that the BGP learned routes disappears when the Internet connection is taken down. The IP routing table on R2 only shows internal networks and the networks between R2 and WAN 1 and 2. No routes to internet is shown. We run "show ip bgp neighbors <ip-to-wan-1-router> received-routes" it contain internet routes. And when we run "show ip bgp neighbors <ip-to-wan-1-router> routes" it contains no routes at all.
Trying to get a Cisco ASA 5505 to show me all the current dynamic PAT. (I don't want to see hard-coded port forwarding, just dynamic stuff the router is doing to allow various hosts on the network to talk to the WAN.)