Question about Cisco ONS 15454 3.4.0 (15454-R3.4.0SW/CD) for PC

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If I'm discovering that nodes are being effected by an UPEQUIPPED PATH, how can I navigation on the CTC to find the single circuit that is causing the problem.

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Re: CISCO ONS 15454

Could u explain more??? what is the typr on the NET. tell us more

Posted on Jul 31, 2007

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How to avoid network downtime and what are the top reasons for this?

Let's see what are the most common causes of network downtime, and what can be done about them?

Issue: Hardware single points of failure
Solution: Try to minimize single points of failure. When they're unavoidable, make sure broken hardware can be replaced quickly.
If it's impossible to connect servers to multiple switches, be able to replace a broken switch with another one that has an identical configuration. So either use those switches in their default port/VLAN configuration, or set up a spare switch with an appropriate basic configuration in advance so simply replacing the hardware is enough to restore connectivity.

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Sometimes, for some reason, the packets are lost, but the BGP doesn't notice that there's a problem, so traffic is flowing towards the black hole rather than be rerouted.
Solution: One way to detect this problem is to monitor reachability of key remote services. Another is looking at total traffic, which will be much lower than usual in the presence of a black hole. Once detected, recovering from routing black hole affecting one ISP is very simple: shut down the BGP session towards that ISP until they've fixed the problem.

Issue: Routing problems caused by software bugs
Solution: It is useful to have equipment from different vendors, so that if one device is affected by a bug, the other one isn't.

Issue: Power supply problems
Solution: Having some kind of backup power is key. Also all network components must have redundant power supplies connected to different circuits, so they can keep running when there's a failure or maintenance on one feed. Make sure one circuit can provide adequate power by itself, and that the circuits have as few components in common as possible. If it is not possible to ensure redundant power supply, it's important to have two components that provide backup for each other connected to different power circuits, so if one circuit goes down, that doesn't take out both devices.

on Jan 20, 2015 | Network Software & Management Tools

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64 mb flash card

Put it in a card reader. What does this have to do with networking?

Sep 04, 2014 | Cisco Network Software & Management Tools

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Have error 442 with cisco client vpn 5.07 on windows 7 - 32 bit - any ideas?

Error 442 - Failed to enable virtual adapter.
No fix yet from Cisco. Try this work around.
Run cmd as Administrator and execute the following command:
reg add HKLM\System\CurrentControlSet\Services\Tcpip\Parameters /v ArpRetryCount /t REG_DWORD /d 0 /f

Mar 24, 2011 | Cisco Systems Cisco VPN Client

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I lost, or dont remember, the password to my Cisco router

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If you provide us with the exact model number of your router, which can be found on the router itself, we can provide you with the exact location or the reset button and what will be the credentials to log in after the reset.

Jan 23, 2011 | Cisco Network Software & Management Tools

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Cisco vpn sever set up

Here's a tutorial for you on VPN: As trying to type it down here would just be too Have fun with that!!

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you have single web/proxy server or it is separate. two IP's in a machine or you've natted it on router. which web server are you using with which OS. these thinks are most required for your answer thanks

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