Priscilla Oppenheimer wrote:
>
> It's a fast Ethernet trunk, actually. I forgot to mention that. He does
have
> some internal servers. Do you think in and out of a Fast Ethernet trunk
will
> be less of a problem?
The 2600 might be.
> He had a broadcast meltdown last week. Perhaps that's why he's
"Lange, Eric" wrote:
>
> It's wasn't supported until 12.2(4)T.
>
> Check it out. This is from a 1750 running 12.2(4)T:
>
> > interface Loopback9
> > ip address 111.11.1.1 255.255.255.254
>
> It works!
For a loopback, so does a /32 :-)
Jeff
Message Posted at:
http://www.groupstudy.com/f
Richard Bosire wrote:
>
> Hie
>
> There are # of public NTP servers .
> You can get pointers from here
>
> http://www.eecis.udel.edu/~mills/ntp/servers.htm
>
> bosire
>
> Cjack wrote:
>
> > I want to config a network that consist about 17 routers. But i dont
have a
> > atomic clock
Take y
For the first three bytes of the MAC, the
vendor ID (in the first three bytes) is preserved but the low order bit
of the first byte is set, making it odd (the second hex digit). For
example, an HP manufactured NIC might have an 08-00-09 prefix; but
HP specific multi
't ever been exposed to such nuances.
I value real world experience much more than some CC** acronym after
your signature. This is the stuff you need to know that no boot camp
will teach you, and I value this "outside the mainstream" information.
I don't read this list fo
is it, no faster (for the RSM, newer blades
excluded). So it can quite comfortably fit on one bus.
The "big five" slots (1-5) should be used for supervisors (the SUP3 and
beyond can hit all three buses) and newer blades like the ones with the
"R" suffix and beyond, which can hit
f you oversubscribe the uplink, you can
overload the switch, regardless of flow control, buffer size, etc.
Bottom line, in southern terminology, there ain't no collisions on a
full-duplex link :-)
Jeff Kell <[EMAIL PROTECTED]>
Systems/Network Administrator
University of Tennessee at Chat
Circusnuts wrote:
>
> Any cabling ideas. I need an RJ45 connection to DB15, for a remote
> transceiver...
You need a transceiver on the AUI end. Allied Telesyn makes some
economical ones. You can't do any cabling magic, a transceiver is
an active device requiring some smar
David Nie wrote:
>
> Hi, all
>
> Could you please tell me the difference of tacas+ and radius server?
A couple thousand bucks :-)
Jeff Kell <[EMAIL PROTECTED]>
_
FAQ, list archives, and subscription info: http://www.groupstudy.com/list
yer 3" devices from Cisco (and other vendors for that matter).
You gain lots of speed but lose a lot of traditionl IOS router
functionality.
Jeff Kell <[EMAIL PROTECTED]>
_
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.h
p the router afterward. The switch must have some
L3 assistance, such as a 5000 with a supervisor supporting NFFC
or NFFC-II,, or the equivalents on a 6000 series.
NFFC will do MLS for IP
NFFC-II does MLS for IP and IPX.
Nothing I know of does Appletalk.
Jeff Kell <[
do for the additional hub MAC addresses that are hanging off of
> the switch port?
If no port security is set, it learns the additional MACs.
If you have a 'network port' unknown MACs are sent there.
Else packets with strange MACs are flooded.
Jeff Kell <[EMAIL PROTECTED]>
You need a 'plus' image for ISL.
Jeff
_
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ia is 'busy'.
Excessive collisions are 8 or 16 successive collisions on the same
packet (depending on who is reporting them).
Deferred transmits can lead to input buffer shorage and consequently
input drops.
The latter case is a more true metric of media congestion.
Jeff Kell &l
e the product, although I did have some bad experiences before
getting everything "right" with RME. Don't give up yet.
Jeff Kell <[EMAIL PROTECTED]>
_
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report
Typically 1024, although the smaller 4Mb RAM 2924XLs limit them to more
like 32. It is device dependent, as is the size of the CAM table/MAC
cache.
Jeff Kell <[EMAIL PROTECTED]>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.co
ze at high speed where accurate clocking is critical.
Dealing with ATM itself versus Synchronous Serial (SNA, BSC, etc) you
also have fixed frame (cell) sizes to contend with.
Note that traditional T1-T3-etc circuits are essentially synchronous as
timing is provided by the network.
Jeff Ke
opulated.
This hasn't been updated to 'modern day' technology of switches and
bridges (which change the rules somewhat).
Jeff Kell <[EMAIL PROTECTED]>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associates.html
_
as I know this was practically
dropped with 10Base2 and totally dropped with 10BaseT.
There was also a mention of IFG (InterFrame Gap) which is also time
wise (and length-wise) related to bit/signal rate on the media.
Thus the complex blend of physical laws, timing, performance, and
other issu
which will not work. Fiber
links are not auto-sensing in speed or parity (that I am aware of).
The only way you can connect them is 100TX to 100TX, or else get a
GBIC module for the 2924 (I presume it is a 2924M-XL?).
Jeff Kell <[EMAIL PROTECTED]>
**NOTE: New CCNA/CCDA List has been formed
aken :-) Personally, I would prefer a
new 'ip dhcp-forward a.b.c.d' type command to the older, overloaded
helper-address.
Jeff Kell <[EMAIL PROTECTED]>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associates.html
_
ANs or other partitioning (non-Cisco) of the switch,
only one broadcast domain.
Jeff Kell <[EMAIL PROTECTED]>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associates.html
_
UPDATED Posting Guidelines: http://
s some
new switch with more bells and whistles than I've ever heard of, there
is some overhead to establish "L3 permission" to turn it into a "L2
path".
Jeff Kell <[EMAIL PROTECTED]>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.
apster netblock
(AFAIK). Then there is Napigator (out-of-band Napster index servers).
It will likely only get worse :-(
Jeff Kell <[EMAIL PROTECTED]>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associates.html
_
apster netblock
(AFAIK). Then there is Napigator (out-of-band Napster index servers).
It will likely only get worse :-(
Jeff Kell <[EMAIL PROTECTED]>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associates.html
_
that using the 'default' keyword makes it process-switched
and eats up CPU.
Jeff Kell <[EMAIL PROTECTED]>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associates.html
_
UPDATED Posting Guideline
is* supported in the Enterprise feature
> > set for most of the low-to-mid grade routers. Not sure about IP
> > Plus, Desktop, or other medium-feature grades.
The "Plus" images have ISL/VLAN support, and also routed NAT. It
started around an 11.2T release as best as I recal
cp any any range 6680 6699
Now that fall semester is back in full swing, we had a big increase
in file sharing traffic, so we are playing with 'traffic-shape group'
command to try and limit their bandwidth. I'd be interested in the
configs if anyone else is doing this (or si
one IPX frame format. If you are routing
using a trunk, I don't know if you can have multiple encapsulations
since you need subinterfaces to define
the VLANs (perhaps you can, and just configure IPX on the additional
ones).
>From the switch perspective, it's all one VLAN and one p
> Dusty Harper wrote:
>
> IPX RIP Packets are advertised every 60 seconds as are IPX SAP
> Packets...A lot of Implementations stagger the two protocols to lessen
> the broadcasts simultaneously. (RIP SAP
> RIP SAP ) This is still broadcasting every 60
> seconds though.
Unless you configu
his "false error reporting" although the "classic" Catalysts
(2900, 5000, 5500) do not.
Jeff Kell <[EMAIL PROTECTED]>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associate-Announcement.html
pose I should rethink this (although the 7500 has no serials).
It was appropriate before the NFFC-IIs and MLS, but now that seems to
have alleviated the bulk of the router demands. I still can't see a
1/12000 pushing a few DS1s, but perhaps the 7500 shou
er to proxy NTP for your network, or failing
that, a suitable NTP host with a good clock. We use our 7500; never had
any luck with an old MGS or it's 3640 replacement that sits on our
primary border.
Jeff Kell <[EMAIL PROTECTED]>
___
UPDATED Posting
ion is detected so that
they are not propagated.
However, fragment free does nothing to check the IP CRC or TCP checksum
(really only the former is relevant to a switch) so late collisions and
CRC errors can still be propagated.
Jeff Kell <[EMAIL PROTECTED]>
___
ip nat static definitions and pools, then clear
ip nat trans *. At that point you should be able to remove any
remaining pools/statics and the ip nat inside|outside configurations.
Jeff Kell <[EMAIL PROTECTED]>
___
UPDATED Posting Guidelines: http://www
tching, if I recall
correctly; don't have my notes in front of me]
Jeff Kell <[EMAIL PROTECTED]>
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
or and even line cards (in the case of
QoS, yes, it goes down to the line card module for capabilities).
Jeff Kell <[EMAIL PROTECTED]> (has 5005, 5500, 2926s, etc at work)
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ
ange as it can be disruptive. You can get away without
doing it depending on the importance of possibly interrupting traffic
for the few seconds it takes to paste the configs back in (about the
same risk as unplugging/reconnecting an ethernet interface on a
production network, with a few
e/destination pair.
On higher end and newer IOS releases, you can also set ip route-cache
flow which will keep some connection statistics.
Jeff Kell <[EMAIL PROTECTED]>
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ
net
>
> ping of coure, trace is usually used as a backup to ping, and telnet
> tests the whole stack.
ping is ICMP. trace (on cisco router) is UDP. telnet is TCP.
> > 16)what command to check the periodic update of RIP>?
>
> Don't remember, never used rip - (sho
estion, are all of these forwarded by
default? Is there a way to determine which ones are forwarded?
I generally use 'no ip forward-protocol udp xxx' for the more obvious
and noisy offenders that I want to be sure aren't forwarded just to be
sure, and they appear in the 'sho
proxy-arp
and so forth. Have fun :-)
Jeff Kell <[EMAIL PROTECTED]>
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
n between yourself and a host, can
you define static ARPs on the client, host, and endpoint router(s) if on
different subnets and protect yourself from such an attack?
Sorry if somewhat off-topic, but it does get to the way ARP works (is it
stateful - request and wait on reply, or they two event
Nick Brooks wrote:
>
> no, but they just announced the 4500, and 4700's are going EOS on
> Nov 25, 2000.
Does that include the 4500M as well?
Jeff Kell <[EMAIL PROTECTED]>
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/
default interface xx' or 'set next-hop' in
your route map controlling policy routing.
--
Jeff Kell <[EMAIL PROTECTED]>
___
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://ww
45 matches
Mail list logo
