Hi, As Milan noted below, the CVD is the best resource for understanding the design and how to implement PfRv3. I recommend reading over that guide first to understand the underlying design principles and requirements first. If you have concerns about the configuration, there was also a CVD released in January of this year which provides more example configurations for both branch and hub sites - http://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise-networks/intelligent-wan/cvd-iwanconfigurationfilesguide-jan15.pdf You will need the 'datak9' license to enable PfRv3. Thanks. Brandon ... View more

Can you provide the following outputs - show power show environment all Given that almost everything has been replaced and there are other devices on the same source not seeing the issue, it sounds like the best next step will be to replace the supplies.  I want to see if any alarms or negative readings have been reported by the device although I suspect not.  Thanks. Brandon ... View more

Hey Abdul, Can you post a 'show tech' from this device along with 'show stack 51'?  This problem can sometimes be caused if 'update dns' is configured and the server is updating at a more frequent pace than the client has requested.  In some instances, configuring the following can eliminate the problem - no ip dhcp update dns This may require a reload after the command is configured to clear the condition.  Thanks. Brandon ... View more

Hey Karim, From what you've described, this should be supported provided that you're upgrading from a native-to-native (*.mz) or modular-to-modular (*.vz) IOS image.  We do not support eFSU when moving from a modular to native image or vice versa.  Outside of that, you should be able to move from SXI3 to SXI4a using this procedure.  Can you please also provide the following command from the switch - show issu comp-matrix negotiated I'd like to check it as well to see if it provides further information.  Thanks. Brandon ... View more

Can you post a 'show tech' for review?  You mentioned that you checked the TACACS logs for any commands being run around the time of the reloads.  Did these show anything?  Also, have there been any power issues reported at the site?  Any other devices connected to the same power source that aren't seeing the issue or any other boxes at that site that are or are not seeing the problem? Brandon ... View more

That's right.  You will need to set up a boot statement to point to the correct image as I mentioned in my previous post - Router(config)# boot statement flash : Once this is configured, be sure to save the configuration and it should now show up in the running/startup config.  This ensures that the router knows exactly what to look for when booting up. Brandon ... View more

What code are you running right now?  Can you send me the output of 'show version' along with the following - Router(config)# boot ? Router(config)# boot system ? The router should pick up the correct IOS upon reload even without a boot statement but you should have the option to set it.  I'd like to check the outputs above to see what the router is reporting. Brandon ... View more

Hey Steve, Without enough room in the flash for 2 images and no other places to store it, you will need to delete the old image to make room for the new one.  With that, however, come some checks you should run to ensure the image is valid and doesn't get corrupted during the download to the router.  Once the image is loaded in the flash, you can run the following commands - Router#verify : Router# verify /md5 : From the second output, you should receive the calculated MD5 hash for the image which should match up with what is shown on the Software Download Page for that specific image.  Once this is verified, the image should be clean and bootable. The router should check the flash for the first available image to boot if no boot statement is specified.  However, it's good practice to always have a boot statement to make sure the router knows where to look.  It is best to configure the following - Router(config)# boot system flash : Router# wr mem This ensures that the router has the correct path and image specified and saved in the configuration so that upon reload, it knows precisely what to look for.  There are ways to boot a specific image from ROMmon but this should save you some headaches. Alternatively, there are sometimes ways to boot remotely from a TFTP server but I would advise proceeding with the flash method as it is generally more reliable.  Hope this helps. Brandon ... View more

Hey Romel, This looks like a potential hardware failure with the memory on the SUP, likely specific to the RP side - ! ! !*** Mistral Interrupt on line 4 *** System memory 1 bit ECC correctable error interrupt .. Do you see this error each time the SUP tries to boot?  You'll probably need to replace the SUP (at the very least, the MSFC).  Hope this helps. Brandon ... View more

Hey Chad, As the others on this thread indicated, there isn't necessarily a specific release which you should be looking for unless you're seeking new features in the next release which currently aren't available in the IOS you're running now.  If that's the case, you may want to look at the Software Advisor - http://tools.cisco.com/Support/Fusion/FusionHome.do Apart from that, the other thing that you want to make sure of is that you select a comparable feature set to the one you're using now.  I checked the Software Download page and you are currently utilizing an advanced IP services set - ADV IP W/MPLS/IPV6/SSH/3DES + BGP Depending on which release you go to, the exact feature set you're using now (pk9sv) may not be listed.  You will probably want something comparable to 'advipservicesk9'. As far as the upgrade procedure, if you have dual SUPs in this chassis, you can check the following link for a best practice procedure - http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_example09186a0080a98f3c.shtml#native This is known as an FSU (Fast Software Upgrade).  If dual SUPs aren't configured, the upgrade procedure will be similar to that of a router where you simply change the boot statement to point to the new image, save the configuration, and reload. Hope this helps. Brandon ... View more

Hey Anny, General licensing transfer information can be found here - https://tools.cisco.com/SWIFT/Licensing/PrivateRegistrationServlet As far as purchasing an upgraded license, you can contact licensing@cisco.com to assist further.  Hope this helps. Brandon ... View more

Hey Vikram, FastEthernet4 is the WAN port on this router.  Are you assigning the IP directly to this interface or obtaining the IP via DHCP?  What does Fa4 connect to and what does it show for its port status in 'show interfaces'?  Can you please attach the configuration from the router (show run) along with a 'show interface' output?  Thanks. Brandon ... View more

Hey Mark, Does the router stop booting each time at this same spot?  If possible, try to break into ROMMON using 'Ctrl+Break' and change the configuration register to 0x2142 - rommon > confreg 0x2142 rommon > boot Please record the full boot logs when doing this and attach them once complete if the router still fails to come up.  Has this router ever booted up successfully and if so, were any changes made recently before this problem was observed? Brandon ... View more

Vitor, I've looked at your memory outputs when the device was running low on available memory and we see the following - Processor Pool Total:  177313232 Used:  151354108 Free:   25959124 ... 86   0  109139980    7228060  101919124          0          0 IP ARP Adjacency As you can see, the problem here is in the Processor pool and the majority of memory is being held by this ARP process.  I believe that your problem is this line in the configuration - ip route 0.0.0.0 0.0.0.0 FastEthernet0/0 Pointing a static route to an interface as opposed to the next hop causes the interface and router to think that anything routed through that static route is directly connected and for that reason, we'll send an ARP request to the destination addresses that route through it.  You can read more about it here - http://www.cisco.com/en/US/docs/ios/ipaddr/command/reference/iad_ip.html#wp1047008 " Adding a static route to an Ethernet or other broadcast interface (for example, ip route 0.0.0.0 0.0.0.0 Ethernet 1/2 )  will cause the route to be inserted into the routing table only when  the interface is up. This configuration is not generally recommended.  When the next hop of a static route points to an interface, the router  considers each of the hosts within the range of the route to be directly  connected through that interface, and therefore it will send Address  Resolution Protocol (ARP) requests to any destination addresses that  route through the static route." "... the router will consider all of the destinations  that the router does not know how to reach through some other route as  directly connected to Ethernet interface 1/2. So the router will send an  ARP request for each host for which it receives packets on this network  segment. This configuration can cause high processor utilization and a  large ARP cache (along with memory allocation failures). Configuring a  default route or other static route that directs the router to forward  packets for a large range of destinations to a connected broadcast  network segment can cause your router to reload." This does not look like an IOS bug but a misconfiguration.  It is suggested that you change the static route to point to the next hop on the link, i.e. - ip route 0.0.0.0 0.0.0.0 Make sure that you remove the static route that points to the Fa0/0 interface.  Let me know if you have any questions.  Also, I've published this document for general memory troubleshooting that you can use for future reference - Troubleshooting MALLOCFAIL Errors and General Memory Problems Hope this helps. Brandon ... View more

Identical DRAM is necessary to run in a fully redundant SSO environment.  If the DRAM amounts are mismatched between the 2 SUPs, you may receive an error similar to the following - %PFREDUN-4-PHYSMEM_MISMATCH:  Asymmetrical redundant configuration: Active [chars] has ([int]/[int]K)  memory, Standby has ([int]/[int]K) This error message is detailed at the following link - http://www.cisco.com/en/US/partner/docs/ios/12_2sx/system/messages/sm2sx06.html#wp1029555 As far as the on-board flash sizes, these don't necessarily need to be the same but it is good practice to have everything synchronized between both SUPs to avoid any headaches should a SUP switchover occur or be required. The CF card size doesn't have to be the same size either but again, it's good practice to have this synced up.  As far as removing the flash card, because the IOS is installed in DRAM of the SUP on boot-up, it's OK to remove the flash card during normal operation with the card up.  Keep in mind, however, that if your only IOS image is stored on it and you're booting from it, if the SUP goes down without it installed, you will be stuck in ROMMON. Brandon ... View more