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Switch Port Becoming Private & restricting access

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http://www.unix.com – Hello folks, I have an AIX server that is connected to a storage array via a Brocade switch using 4 ports from either side. The zoning is done such that there are 4 paths visible from the server to the storage. My work involves frequent disabling or enabling the switch ports that are connected to the server. The switch ports connected to the server usually show status as "L Port Public". When I disable a port, the status for the corresponding port becomes disabled & the server starts seeing 3 paths. Everything as desired. The issue is when I try to re-enable it. The port th (HowTos)

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Submitted by robot1 on 08/02/2012 – Made popular on 08/02/2012

Stories similar to Switch Port Becoming Private & restricting access

I have a win2008 Server with 4 network ports (A,B,C and D) where only 1 port A is connected to the LAN (192.168.0.0/24). The other 3 ports (B,C and D) are not in use.

I have another PC want to join the same LAN(192.168.0.0/24) by connecting the pc's network port P to one of those 3 unused network ports (I am using network port B in this case) on win2008 server.

I have a Cisco 2950 switch which has one of its ports connected to an Internet router provided by my ISP; I have no access to the router configuration, but I manage the switch.

If I leave all switch ports with their default setup (auto-negotiation of speed and duplex mode), this link always connects at 100 MBit/s, but in half-duplex mode.

I've tried replacing the cable, and also moving the link

So here is the deal, I have a server on switch A where port 3 is monitoring traffic for most of the ports on switch A. However I have other users on switch B that needs to have port 3 on switch A monitor as well. Is this possible?

Today, A tech at a remote server site unplugged a single port from one of our fiber converters for our WAN uplink from a Dell PowerConnect Switch. We lost all networking on the 3 stacked 48 port switches for a while, and looking at the log, it appears that removing that one port (which is on a seperate VLAN that only 3 of our ports use) Caused Spanning tree to go crazy..

If I have a network like:

Group1 -> Switch -> Switch -> Server (configured as gateway by DHCP) Group2 -> Switch -----^

(Hope that makes sense...)

When computers in each group send packets to other computers in the same group (so same switch), will the packets go all the way through the second switch to the server and back again or will they go directly to each other via the first s

USB access from switch 19 weeks 4 days ago

Currently, I have a network setup that kind of duct-taped together.

I would like to tcpdump all traffic that my router does when it makes a firmware update.

So I have taken a HP ProCurve 1800-8G switch and mirrored port 7 to port 8.

I have connected:

Internet connection in port 6 routers WAN port in port 7 Linux host running tcpdump in port 8

I suppose the router have a dhcp client on the WAN interface.

However I don't see any activity.

I have 6 Juniper switches (EX - 2200) connected to each other as shown in the network topology.

I have two PC's that I am using

PC1 - (used for configuring the 6 switches via minicom)

PC2 - to monitor the traffic between the switches via the Ports that are marked with arrows in the diagram.

STEP 1:

I create a new vlan On Switch 3 (SW3) that includes Port 12 and Port 22.

I have servers connected to multiple Juniper EX4200 based virtual chassis. In order to make them hot swappable without manual reconfiguration, I would like to be able to always give the same IP, with DHCP, to servers connected to a specific switch port.

Or, alternatively, to be able for the server to know which port it has been connected to.

Is any of these setups possible?

Thanks.