Besides VRRP not being proprietary, there are a few minor differences between the protocols as well:
With HSRP, each interface must have an IP address that is separate from the HSRP group address. VRRP lets you share the Master's interface IP address.
On Cisco devices, VRRP is configured to preempt by default, whereas HSRP is not configured to preempt by ...
4 nines = 99.99 %.
That means the probability that a link fail is 0.01 % or 0.0001 in terms of probability (scale 0 - 1).
Assuming independence, The probability that both link fails is 0.0001 x 0.0001 = 10-8, which gives back 99.999999.
Yup, that's 8 nines and not 5, but we usually don't consider more than 5 nines.
Note that Assuming independence, is in ...
A link that is 99.99% reliable is down 0.01% or 0.0001 of the time. So if the downtime of the two links is independent then both lines will be simultaneously down 0.00000001 of the time. Your link is in-theory up 99.999999% of the time.
In practice though you don't usually get the full benefits because of other factors.
Do you know how independent the ...
1) Cisco propriteray
2) 1 Active & 1 standby router & 1 or more listening routers
3) use virtual ip add as gateway
4) hello 3 sec & holddown timer 10 sec
5) we can enable preempt manually (standby 1 preempt)
6) multicast at:22.214.171.124 (ver1), multicast at:126.96.36.199 (ver2). Both versions use udp port 1985
1) open standard (ietf)
Assuming the two NICs on the servers are used to separate production and backup traffic, use VRFs. That's the best traffic separation technique there is. For more scalability (not sure you need it based on the diagram), throw full-blown MPLS/VPN in the mix, it runs on both Cat 6500 and ASRs.
I would approach this by thinking of the conceptual layers: "backups" are an application that uses the network. So if you're going to include a representation of backups, then you should have all(most?) network using applications shown. So if that's what the diagram is about, then yes, include backups. If it is, for example, a physical wiring diagram, then ...
The problem ended up being a permission issue on the backup server. This didn't seem to be a problem since ISE was able to read the backup folder. I also thought this was an issue on ISE's side since it was reporting the backup successful when it wasn't. It seems that ISE reports the backup is successful if it can login to the remote server and pool the ...
Is it possible you are talking about 3650, not 3560? The switch is running in "install mode" and .pkg files are packages extracted from .bin. You could check the files that switch is using with a command:
show version running
Backup all these files + packages.conf (if you do not have original *.bin file)
I was able to Goole the answer in less time than it took for you to write the question:
Configure the FTP username and password.
CE_2(config)#ip ftp username cisco
CE_2(config)#ip ftp password cisco123
From Back up and Restore Configuration Files
If you're not using all your bearer channels for voice, you can provision some of them for data. Practically speaking, you would need to use at least half (12 channels).
I am assuming that if the office is small enough that a data T1 is sufficient, you don't need very many bearer channels for voice. The channels have to be one or the other. I suppose ...
The only way to backup the configuration is with CLI commands. The switch has no "cron" capability. And as I recall, v5 software doesn't have an ASCII configuration -- tftp gives you a binary blob. show running-config will provide a text configuration, but v5 is rather dumb and includes a mountain of defaults.
You'll need an external script to telnet into ...
HSRP is Cisco-proprietary. VRRP is not (RFC 5798). There are probably other nitty gritty technical differences, but that is the major one. And IIRC VRRP doesn't have the ability to do interface tracking, while HSRP does - might be wrong on this though.
edit: RFC 5798 gives v6 support to VRRP. The original RFC was 2338.
I create several different layers of diagrams. This is required to completely document a network. I keep application specific information off of physical diagram. My physical diagram usually includes IP addresses as well, and some basic info about the devices themselves (Make, model, firmware, etc). I then make logical network diagrams that include ...
1) CISCO Proprietary
2) RFC 2281
3) Multicast group Ip:
4) Port No. UDP 1985
5) PREEMPT: By default disabled
6) Virtual Mac address: 0000.0c07.acxx
xx = HSRP group id
7) Ipv6 Support
8) Router roll:
1) IEEE STANDARD
2) RFC 3768
3) Multicast group Ip
Dial backup is (almost) always an option, either to a dailup ISP or direct to one of your other sites. This depends on the capability of your router(s) and PBX(s).
The simplest is an external analog modem connected to one of the router's serial ports. (commonly done on a Cisco AUX port, but there are limitations there.)
A more complex, and expensive option ...
(tmos)# save /sys ucs
I guess you are under tmos shell, right?
I mean you have to enter in tmos shell running the command "tmsh". Then, you have to write the rest of your input
[root@F5-LTM:Active:In Sync] config # tmsh
root@(F5-LTM)(cfg-sync In Sync)(Active)(/Common)(tmos)# save /sys ucs foobar.ucs
For the IGPs, cant you just use the regular metric tuning? EIGRP - just manipulate the delay and for OSPF the cost. Once it hits the BGP core, cant you use BGP meds. For my company (financial intuition) i know thats what we do. We have an A feed and B feed. A feed will have better internal metrics than B. Once it hits our BGP core then its pretty much what ...