Cisco WAN :: 6500 Traceroute Command Output For Routes With Equal Metrics
Aug 31, 2010
=>Routing Protocol in Question EIGRP.
=>Two equal metric routes for destination A(through R1 and R2-SVIs on two upstream 6500s)
Traceroute Output, is the output that alternates between 1.1=>10.1=>1.1 normal granted the two routes are "equal metric routes for the same routing procotol in use" or is that "round robin behavior" indicative of a routing problem?
I have a query on how the 6500s running in VSS mode would route the traffic over an OSPF environment where it has leant about two equal cost paths, but one via the 2nd chassis.Proposed setup - 2 6509s running in VSS. Switch-1 in VSS has a layer 3 connection (via a LES circuit) to one of a pair of Nexus 7Ks at another office. Switch-2 in the VSS has another layer 3 connection (via LES by another provider) to the other N7K at the other office. The L3 connections would use /30 ranges and allow each Nexus to form an ospf neighbour relationship with the VSS. We want to keep both offices environments separate so although we do have L2 circuits we're using these to provide L3 connectivity between sites & exchange routing info via them using ospf.
Each Nexus will advertise all the directly connected networks it knows about to the 6509s running in VSS. Thus I couldn't figure out if for example we have users/servers behind our VSS 6509s, these would need to go via their default gateway to get to a network located off the LAN, the default gw ip in VSS setup exisits on the control plane on switch-1 (in normal operation). Then to get to a network that is located off the Nexuses at the other site it would have 2 equal cost paths to it, however one of these paths would be via the VSL link and off the switch-2 chassis. I wasn't therefore sure if we'd actually ever see any transmit traffic via the 2nd L3 connection because I have a funny feeling that I've read the VSS always choses the local chassis egress rather than going via the VSL to use another port...
All of the above is theorectical at the moment as currently both circuits are connected to a single Nexus/6509 chassis however for improved resilence I want to move one of the circuits to be physically attached to the other Nexus & 6509 chasis at each site but I wasn't then sure how the traffic flows would be affected.
I have copied status codes from show ip bg command output and its explanation (from Cisco documentation site)., d and h (suppressed, dampened and history). I read somewhere that these are to control flapping routes. But not able to understand it completly.Raised this question in a couple of forums but didnt get a proper reply.The table entry is suppressed.??The table entry is dampened. ??The table entry history. The table entry is validThe table entry is the best entry to use for that network.
How do you save the command output from the CLI to a file on flash?
With IOS, I would normally use a pipe command to redirect to tftp, but the ASA doesn't support this as far as I can tell. As a work around I was thinking I could save the output to flash and then tftp that file off the ASA.
We have an ASA 5540 failover bundle working in Active/Standby mode. On our active asa 5540 when the sh run command is issued it gets stuck and displays the output after more than 15-20 mins.. and it takes another 10-15 mins to get back to the prompt..
However on the standby asa 5540 if the sh run command is issued, it displays the ouput and comes back to the prompt (even though this also takes 2-3 seconds)
I have tried rebooting the active asa 5540.We are running asa version 8.2.2.
What would cause debug output to not show on a remote session via telnet connection where you've enabled terminal monitor?
The reason I ask is I was working with a client and we were debugging WCCP. I ran the debug ip wccp packets and events commands, then entered terminal monitor. After this, we saw nothing. We should have at least seen particular WCCP-related packets because we saw the necessary cluster view was established which can't be done without the exchange of these packets.
Can having syslog (logging) configured cause the issue? Did I use the command incorrectly?
I am facing issue while configuring service-policy output command in Cisco 7609-S router with c7600s72033-adventerprisek9-mz.122-33.SRE2.bin IOS. However, in the same series router having IOS c7600s72033-adventerprisek9-mz.122-33.SRC6.bin is supported service-policy output.Both the switch have WS-SUP720-3BXL SUP.
6500 - version (s72033_rp-ENTSERVICESK9_WAN-M), Version 12.2(18)SXF17a.I have two ISP's. I have created two defaults as follow & secondary route does not work. [code] After disabling the interface to ISP1, backup routes does not work. [code]
I have a scenario which is fairly common - certain servers are accessed from the internet via a Load Balancer, and since seeing true client IP is a requirement, the return traffic path must go back through the load balancer. However, I do not want to route all traffic via the load balancer for obvious performance reasons. Internal traffic should be routed directly by the Layer 3 switch, which has a default route of a Firewall.
My plan is to use a VRF for the load balancer and any applicable servers, which works fine. But now I need to join the VRF's routing table with the switch's GRT (global routing table) so that internal traffic works. What is the best way to do this? For scalability reasons I'd like to avoid static routes and I see many examples using BGP, but in this case it seems overkill since everything is on a single logical switch. Can I use OSPF instead? Or a different method? The Supervisors will be 2Ts, so IOS 15.0 will likely be running.
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?
I am observing some strange behaviour related to the routing table, almost all external routes and some inter-area routes are getting refreshed every 10 seconds.
I am getting more than 1000 entries after running 'sh ip route | i 00:00:0', these external routes are being advertised by a neighbor 6500 which redistributing these static routes.
I am not able to configure Service policy output command in Cisco 2921 router.While configuring I am getting below error.Same config is working fine in Cisco 3845 router.I am suspectting the problem with license in IOS.
Is it possible to issue eigrp leaking routes on catalyst 6500 running IOS 12.2-33SXI9 on gigabitethernet interfaces? or is there another way to acomplish this?
Have got 2 6500 in VSS. I'm seeing unsual high output drops. IOS Version: advipservicesk9-mz.151-1.SY.bin
Seeing too much output drops on interface ( in millions). When checked buffers ( output pasted below), it also shows enourmous drops.Not too sure, but is this normal or is there something fishy; which needs to be investigated. [code]
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.
I have 1x Cisco 6509 with Sup2 and MSFC2 and it is running on IOS (c6k222-jk9sv-mz.122-17d.SXB11). I have following policy map :
Policy Map VOIP Class IP PHONE priority percent 75
and the following command on each interface: service-policy output VOIP those configuration are working fine on SUP2 with MSFC2 but last week I tried to upgrade the SUP2 to SUP32 on the switch and upgrade the IOS to the latest version (s3223-adventerprisek9-mz.122-33.SXJ4) but when I try to put service-policy output VOIP on each physical interface I am getting the following error:
"Priority command is not supported in output direction for this interface" and when I try to add service-policy output VOIP on a V LAN interface I am getting following error:
MQC features are not supported in output direction for this interface. Will I need to change something after upgrading to SUP32..
Is there a way in EIGRP to prefer external routes versus internal routes. EIGRP always picks up internal routes as long as they are available, no matter if external routes have better metric. Our Scenario is that we have DMVPN hub and spoke topology running EIGRP 101. The Core routers also on EIGRP 101 prefer EIGRP 101 routes. We have the new MPLS network running BGP and redistributing these BGP routes into EIGRP 101. The core routers prefer EIGRP 101 routes (internal) to redistributed BGP (external) routes.
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 on a call right now troubleshooting some latency issue. The CPU usage on the sup card is low. Don't see any drops or input errors. I am aware that the switch and its modules have capability limits. Is there command I can run which will tell me if any module is overloaded or if the fabric/backplane is over utilized?My chassis is WS-C6513 and sup card is WS-SUP720-3B.
I have a question about SNMP OIDs for the command "show counters interface intx/y delta" on Catalyst6500. The customer wants to create graphs for the following values:Overruns, qos0Outlost, InErrors, OutErrors, InDiscards, OutDiscards etc..Is possible to get these values using SNMP?
I have two 2911 routers running 15.0(1)M4 in a redundant topology connected to an ASA 5520 firewall running 8.4 version. All gears are running EIGRP. In order to distribute the incoming traffic between the two 2911 routers, I am using 'offset-list out' on them, but in the ASA's routing table I see updates from both 2911 with the same metric, i.e. the offset-list is not working. What are the default metric weights on ASA? How can I change them? I couldn't find any known bug.
I am currently using ASDM v6.4 and would like to enable the historic metrics feature to view/produce graphs/tables for interface using the Last 5 days, every 2 hours option. how this will impact performance and storage space on the device?
We are currently monitoring approximately 50 locations each having one or more cisco devices, Catalyst 3750 and 3560.Locations are connected via CWDM.We would like to monitor interface errors, signal loss and power on CWDM SFP transceivers on Catalyst 3560 and Catalyst 3750 switches. We tried to get these values (as shown using „sh interface transceiver“ command) using SNMP but we didn't get any SNMP result. What MIB or other functions/ modules/ features need to be used/activated on switch?Do we need any additional piece of hardware?
I have two offices in rural area with a quite distance between them. Offices are connected with private wireless 100Mbps and cooper 100Mbps links provided by different ISP. Wireless connections are delivered as a private L3 Ethernet link but cooper as private L2 Ethernet trunk link. In both offices I have Cisco 3750 L3 switches. I would like to use both link (equal-cost paths) in load balanced configuration but not sure how. Both switches running EIGRP. Asymmetric routing is not an option. Per-destination load-balancing or something else?
i'd like to know if there's a routed switch lower than 3750x? also 2960s? but have equal functionality like switchport mode access, trunking, spanning-tree, etherchannel, etc.
I used to "ip routing" command in order to enable inter-vlan routing, for example with 3750 cisco. I have a 6503 cisco with SUP720 MSFC3. I was able to create some vlans but I can not configure inter-vlan routing.
sw#conf t Enter configuration commands, one per line. End with CNTL/Z. swsur(config)#ip routing
Running an ASA 5500, and using ASDM to connect. I need to view the historical metrics in graph form for traffic overview, that is shown on the firewall dashboard. I have enabled historical data, but all I see the 5 minute intervals.