Our clients claims the problem of loss startup configuration with power outage especially with 877 series , all the router are configured to store configuration in NVRAM ( confreg = 0x2101),
View 5 RepliesThe N7K can't save the configuration to start-up, here is the error message, the box is running 5.0.5, is it a software bug ?
View 1 Replies View RelatedI've goggled and searched here, and I can't seem to find what I'm looking for. I need to make a couple changes to a clients Cisco 800 series router, enable ping replies add ip addresses to the ssh ACL.I can't seem to find any basic commands for CLI anywhere.
View 2 Replies View RelatedWhy the below configuration does not work? BGP exchanges routes without a problem all the time the distribute list is removed from the config. When I apply the distribute list it blocks all routes, not just those intended in the prefix list.
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I have two 4506 switches in my organization. Recently the office was relocated and when both the switches were booted they ignored the startup config.The config-reg was set to 0x2101. No boot system command was configured.So I changed the config-reg of SW1 to 0x2102 and gave boot system command as stated below.When reloaded the switch booted to ROMMON and I had to manually boot the IOS.I want them to boot normally with IOS.Config of SW2 is not changed since relocation. I am specifying both configs bor your consideration. [code]
View 12 Replies View RelatedMay I know why my 2960S-48TS-L takes 10 minutes to boot and start, some just take 1 minute, but one of them take up to 10 minutes, but after that it works fine, why?
View 2 Replies View RelatedI'm having some trouble with a 4510 Switch Line Card. I need some recomendations for troubleshooting it.We have some PoE phones connected to the card number 3. When those phones were restarted, they did not go up again. In order to discard wiring issues, we connected the phone directly to the card 3, and the phone did not go up. If the phone is connected to a different card, it goes up correctly.
Additionally, to restore the service, these phones were migrated to other cards, but when we disconnect the equipment, ports in line card 3 remain in an up / up state (and nothing is connected to those ports!!), and only reflect the actual state after restarting the port.What steps could I do in order to troubleshoot this issue?. What should I look for, or how do I discriminate the problem? Might it be a hardware issue, a PoE issue?
how can i take backup of startup config to tftp server through tftpd server.I am using 4506e switch
View 2 Replies View RelatedHow a 6509 pair handles the loss of the other vss switch, and what happens when the other comes back on ?
View 1 Replies View RelatedWe have a site were we have a 887 cisco hsiung a GRE tunnel
When pinging anything froom the tunnel source to the tunnel dest on the local lan we get a 50% packet loss
ping
Protocol [ip]:
Target IP address: 10.9.93.22
[Code].....
replicated the setup exatly in our lab and it works 100% with exactly the same config.
I have a cisco 3560E switch setup with LACP, when using LACP i receive alot of packet loss / output drops
When a ping from the server behind LACP:
--- google.com ping statistics ---
44 packets transmitted, 39 received, 11% packet loss, time 42990ms
what would cause this packet loss with lacp?
some output from the switch:
Port-channel12 is up, line protocol is up (connected)
Hardware is EtherChannel, address is d0d0.fd58.7390 (bia d0d0.fd58.7390)
Description: LACP-PORT
[Code]....
I'm facing a problem regarding loss of ping packets when i do ping test from nexus3k to another nexus3k connected directly.however there is no error counters on the interfaces on both of devices.the ping failutre is occurring only whenever i do ping test with a large number of ping packets.I don't see the ping loss symptom with default ping test (default ping test is 5 packets).
H/W : N3K-C3548P-10G
S/W : 5.0(3)A1(1)
nexus3k# ping 1.1.1.2
PING 1.1.1.2 (1.1.1.2): 56 data bytes
64 bytes from 1.1.1.2: icmp_seq=0 ttl=254 time=2.732 ms
64 bytes from 1.1.1.2: icmp_seq=0 ttl=254 time=2.732 ms
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we have a 6509 with ios 12.2.33SXJ
we have 2 WS-X6516-GE-TX, WS-X6516A-GBIC, and a WS-X6748-GE-TX with a WS-F6700-CFC daughtercard
our sup is a WS-SUP720-3B
we are experiencing packet loss for everything connected in the WS-X6748-GE-TX blade, right now we dont have any production device in that blade due to the packet loss we are experiencing.
this switch was running hybrid before it is now running native ios, however I can't recall if we didn't have that packet loss before. do i need to update a firmware of the card or daughtercard (if this is possible, can't say i've done it before).
Randomly when I try to access to 2950 from management tools, switch is unreachable, I have to access from other switch and reload 2950.
Problem only is from managemt tool to managament vlan 1 2950.
The strange thing is that management interface is encountering a very fast increase of throttles, broadcast and ignored packets:
2950#show interfaces vlan 1
Vlan1 is up, line protocol is up
Hardware is CPU Interface, address is 0023.3488.fd65 (bia 0023.3488.fd65)
Internet address is xxxxxxxxxx
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
[code]....
It could be a hardware problem?, IOS has been upgraded.
I have a Cisco 2960S stack and I'd like to tune the timers so that packet loss is minimal if a switch fails.
View 9 Replies View RelatedI have a Cisco 2960S stack and I'd like to tune the timers so that packet loss is minimal if a switch fails.To simulate a failed switch I have reloaded it while running a continuous ping to a management address on the stack's SVI: [code] As I see the same results when a ping is directed through the single switch (switched), and through the firewall (routed), I'm inclined to think that this is due to the stack failover timers on the Catalyst 2960S.Is it possible to change the stack failover timers (i.e hold down, failover etc), to speed up the failover process?
View 1 Replies View RelatedI've a big problem with a loss of packets ICMP sent by different hosts in differents VLAN. Here my architecture:
Core Switch : 2 Switch's C6509 (Version 15.0 (1) SY1)- Mode VSS - One lien VSL , the other link is defective.Access Switch: C3750 , Connected to Core Switch through 2 fibre optique wires.Topology: redundant ring
When I send consecutive ping message I found always a missing of packets . Furthermore When I insert the "show ip traffic" command., the parameter "bad hop count" increase after a loss of packets. I've 2 hosts connected in my network and they send packets with TTL =127.
In the Core Switch I haven't configured the MEC because it gave me troubles with the packets multicast.
I have two 2960-s switches with GLC-FE-100FX fibre modules in and I am seeing packet loss over the link that is connected to the modules. When the interface is shutdown and brought back up it always comes up in half duplex even thought it is set to full in the config. I've seen other posts where you have to use the command no duplex then full duplex to get it to come up int full duplex. This does appear to work when I do a show int it says its full duplex however I'm stil seeing 20 - 40% packet loss on the link which suggests to me there is still a speed/duplex issue. The device at the other end is a Cisco 7200 which is set to 100Full. If I plug a Cisco 2811 into the fibre link I get zero packet loss which suggests its a problem with the switch.
I have changed the modules and fibre cables which makes no difference. As I stated at the start I have two 2960's both are showing exactly the same issue. Details of the switch are below the SFP are cisco branded:
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 28 WS-C2960S-24TS-L 12.2(55)SE5 C2960S-UNIVERSALK9-M
interface GigabitEthernet1/0/25
switchport trunk allowed vlan 380,382,384,386
switchport mode trunk
duplex full(code)
I have been searching the message boards and wasn't having much luck. I am running some monitoring sessions on my 6509 and on the VLAN I am monitoring, I am experiencing a really large packet loss. If we hook up a laptop to the destination port and run wireshark we are seeing between 80% and 90% packet loss. I dont see the packet loss on the show port command, but I do on the show int vlan command.
The config is as follows:
Session 2
---------
Type : Local Session
Source VLANs :
RX Only : 500
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I was doing some reading on Egress vs Ingress and I am wondering if the Egress SPAN replication state could be causing the packet loss that we are seeing or does the ingress & learn command override that?
ws-c2960-24tt-L Ethernet switch adding or removing any device from switch cause a loss of connection to all other devices on switch for about 60sec.
View 1 Replies View RelatedI have an issue that I am trying to track down. When I have 2 servers on the same VLAN on my AS pair, all is good because nothing leaves the switch. Where the issue is, is when I have 2 servers on different VLAN's and it requires a hop across the Core router pair. This hop drops the throughput rate by about 20-25% (from 44M to 35-36M)I think I know the issue, but want some input to from other to make sure I am not off-base. I have a pair of 6509E chassis' running Sup720 (VS-S720-10G) with CEF720 (X6748-GE-TX) modules. This is my Access Pair running VSS to look as 1 switch.
These tie into the Core pair of 6500E chassis' running Sup720 (Sup720-3B). This issue I see is that the core has a CEF720 card (6724-SFP), but the AS pair does not connect to the core on that card, they connect on a RJ45 Ethermodule (6148A-GE-TX) card. Would the fact that the AS pair does not connect to the core on the CEF7220 module on the core, cause the traffic to not make use of the CEF features of the Core and make each packet then have to be processed by the core instead of Express Forwarded?
I have been setting up a WAP 321 which has been unable to retain it's settings across reboots.
What I have found is that if I leave the Timezone set to USA (Pacific) the WAP 321 can be rebooted without losing config, but as soon as I set the timezone to United Kingdom the next reboot will cause the device to take a long time to reboot and will have then gone back to factory default setings.
I am position to migrate from CatOS 6509 switch to native IOS 6509 switch. long time ago, there was some site to convert automatically based on copy and paste onto the tool, but i can not find.
Does anybody know how to convert CatOS configuration to Native IOS configuration ? It is not IOS change, but it is configuration convert.
If i connected the latop to brand new out of the box ASA 5505 through consloe cable and i have a config file on this laptop from other ASA5505, is there anyway i can upload that config file into startup-config of this new ASA5505 through console cable, without using TFTP or FTP?
View 5 Replies View RelatedFor some reason this RV082 (code level v2.0.2.01-tm-20110308) has generated a SSL cert that is not valid till 2022?
How to regenerate the cert with a valid date?
SSL Certificate - Future Start Date
The SSL certificate is not valid before Mar 3 06:51:27 2022 GMT : Subject : CN=00:0c:41:92:41:71, OU=RV082, O=Cisco-Linksys, LLC, C=US, L=Irvine, SN=California Issuer : CN=00:0c:41:92:41:71, OU=RV082, O=Cisco-Linksys, LLC, C=US, L=Irvine, SN=California Not valid before : Mar 3 06:51:27 2022 GMT Not valid after .
me and my cousins have bought a router and we want to start a network sharing system
View 1 Replies View RelatedWe have about 200 sites connected to us via GRE tunnels over IPSEC over MPLS for primary connectivity, and GRE over IPSEC over the Internet for backup, and EIGRP routing handling the failover.
Most of them are 2811HSEC/K9's, and they're working great. We've recently discovered issues with a couple of clients. They run fine over their primary GRE over IPSEC connection, but when they failover to backup we're losing certain packets (details will follow).
What we found is that they're all on either 1941's or 2911's, and are running 15.0Mx IOS with advanced IP services. The rest of our clients are on 12.4T train, and none of them have any problems. We suspect it is an issue with the 15.x IOS.
Specifically, we're seeing two packets consistently lost. The first is a TCP 'SYN-ACK' from a telnet server, and the second is a UDP SIP REGISTER OK message. Both packets are quite small (well under 500 bytes), so I don't suspect an MTU issue. Packet captures both show that they're being encrypted and sent by the head-end, but are lost before they reach the decrypted tunnel interface. So either they're being lost in the path across the Internet, or the decryption is failing.
We see larger packets get through just fine, and other connections work great. We've opened a ticket with TAC.
Since these routers can't be downgraded to 12.4, our current plans are to ship a 2811HSEC bundle with an identical configuration to these clients to see if we can verify that it's a 15.0 issue, but I'm curious if anybody's seen anything similar, or if somebody who's more familiar than I am with bug tracker can find anything.
I have a Cisco WRVS4400N Gigabit Router. I recently upgraded my Internet service to 50MB download speed. When I connect directly to the cable modem and run a speed test, using speedtest.net, I get 59MB download speed consistently. When I connect the modem to the router and plug into one of the 4 ports the speed is cut in less than half. The max speed is cut to between 23-24 MB download speeds. I have tried this via wireless as well with the same result.
View 1 Replies View RelatedI am having issues where different laptops are dropping packets when communicating to the WAP on the RV220W. I have placed 3 laptops directly next to the router so there is no chance for walls to interfere. From each machine 1 at a time I perform a continuous ping. Here is a quick output from one of them:
Reply from 192.168.0.1: bytes=32 time=3ms TTL=64
Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
Reply from 192.168.0.1: bytes=32 time=3ms TTL=64
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After upgrading an RV042 from 1.3.12.19 to 1.3.13.02, it loses connectivity after several hours. RV042 WAN1 is connected to cable modem (WAN2/DMZ is unused), configured to obtain IP Address.
Cold booting all devices, RV042, AP & Cable modem, re-established connectivity. Only to lose connectivity again several hours later.
Reset RV042 to factory default via reset switch and cleared log. Minimal configuration applied (domain name, hostname, ntp, WAN1 bw=8000).
Checked early this morning and no connectivity. Summary screen showed the same IP on WAN1 port. All appeared normal. Clicked renew, and connectivity was re-established. Same IP as before.
The RV042, when running 1.3.12.19, would run for many months without a hiccup.
This is the log entry when I clicked 'renew':
Aug 18 04:12:40 2011
System Log
DHCP lease info: ip[68.202.x.x] mask[255.255.240.0] gw[68.202.x.x]
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Clicking 'renew' did re-establish connectivity, but I'm not sure if it's a dhcp issue or not. If I read the log entry correctly, the router has the IP lease for an hour, which means it renews several times successfully. Connectivity is down in the morning after several hours go by without use. I'm not sure if that has anything to do with it. Again, nothing changed but the code and the RV042 ran without problems for months with the 1.3.12.19 code.
I have a DB750N Router (Model F9K1103V1) that upon initial set-up was able to see both the 2.4 GHz and 5 GHz bands. I then added a Range Extender (Model F9K1106v1 and was able to see both bands for a short period. Both the Router and the Extender have the latest firmware upgrades installed. I can no longer see the 5GHz band and have been unsuccessful at attempts to get it to appear on devices connected to my wireless network.
View 2 Replies View RelatedRecent incountered an issue with our elastix pbx and packet loss. Noticed this morning that when I turn on the firewall on our RV082, packet loss begins around the level 3 servers I see in my traceroute, and then slow spread out to all hops. When I turn the firewall back off, all hops have no packet loss or less than 1%. The weird part is, previously, I had the firewall enabled, and never had this issue.
View 2 Replies View RelatedI have a RV220W with the latest firmware (1.0.2.4) and I loose about one in every 20-40 packets.
I have tried with both wireless/wired, on different ports, laptops, and Ethernet cables.
My configuration is fairly simple:
1.) I reconfigured the default subnet
2.) I setup a WAP on the same vlan (VLAN1)
3.) I setup a WAP on Vlan2 for guests
Other than that, settings are out of box (save a hostname/etc).
just purchased it, and am thinking I'll have to phone Cisco for RMA.... There is a similar thread where people noticed this on wireless (not sure if they tried wired as I have). RV220W Packet Loss over wireless