6
votes
Accepted
Spanning-Tree Interoperability between ProCurve core & Cisco access layer
Cisco PVST uses a non-standard destination MAC for BPDUs on all VLANs, so HP will not understand it. To the Cisco switch, it is the only switch on VLANs 2-14, which is why it thinks it is the root.
...
- 65.4k
5
votes
Accepted
Multiple Spanning-Tree. Same VLANs on instance for all switches?
The switches in a MSTP domain do agree which VLANs are mapped to which instances. Altering the mapping will change the configuration digest. The result of that will be two separate, degenerate MSTP ...
- 1,558
5
votes
Accepted
Computer mac address appearing on more than one switch
2 of those 3 ports are ports that connect to another switch. If you don't know which ones, I don't know HP command syntax but there is probably a command like show mac port xx, if that show multiple ...
- 2,628
5
votes
Accepted
Port Security Or 802.1X Authentication On Non-Server Network
The 2910al supports 802.1X port security as authenticator, using RADIUS over EAP or PEAP. Depending on your exact goals, an additional router is not required but you do need a RADIUS server. Check the ...
- 78.4k
5
votes
Accepted
Why does the HP Procurve show MAC addresses as 64bit and what do the first 16bits represent?
P1.17 is ancient (March 2010). Our 1810Gs - v1 and v2 - show MAC addresses as 48 bit. I'd update the firmware; P2.23 is latest for v1.
If you do need an answer to what the two additional octets ...
- 78.4k
4
votes
Accepted
HP Networking Switch CLI Comments?
Although there's no direct equivalent to the Cisco IOS "!" to add comment lines to an HP ProCurve switch config file, you can achieve a similar result by using multiple "alias" commands within the ...
- 56
4
votes
Spanning-Tree Interoperability between ProCurve core & Cisco access layer
The only standards compliant STP method common to all switches is MST. You don't have to go nuts with it, 'tho -- running everything from the CIST is fine. (I do just that between half a dozen vendors....
- 30.9k
4
votes
Accepted
what will change in a trunk between lacp mode and trunk mode?
LACP is a protocol where both side negotiate the trunk - if either side doesn't use LACP both (all) links will stay separate. STP may step in and prevent a bridge loop.
A static trunk uses no ...
- 78.4k
4
votes
Accepted
How to set IPv6 RA values for RDNSS and DNSSL on HPE/Aruba 5400R
As it turns out this cannot be configured in a sane manner.
Both values are taken from the configuration of the DNS resolver and search-list for the management plane of the switch.
This implies that ...
- 211
4
votes
HP ProCurve 2520G Switch not accepting HP transceiver SFP
The 468508-002 is a short-wave (850 nm) 8Gb SFP+ transceiver for Fibre Channel. It is not compatible with Ethernet switches and won't ever work in a 2520.
Provision switches like the 2520 series ...
- 78.4k
4
votes
Accepted
Subinterface on Cisco ASA 5550 does not work with VLAN on HP ProCurve
Solved. I registered VLAN 810 on two interfaces on switch to ASA (we have two devices ASA in stack failover). Don't trust GVRP. :-)
- 155
4
votes
Prevent Users from Setting Specific Static IP
The 5400 series supports DHCP snooping with ARP protection which is your best option. Those force a client to use the IP address it is assigned by the authorized DHCP server(s). Any other traffic is ...
- 78.4k
4
votes
Accepted
MSTP with different VLANs blocking port
In order for MSTP to split VLAN traffic across redundant trunks you need to configure MSTP instances in the exact same way on all switches within a region. The switches exchange config digests that ...
- 78.4k
4
votes
MSTP with different VLANs blocking port
You have a fairly common problem with MSTP, which is thinking it should work like PVST, when it's a completely different animal.
The concept that you have to get your head around is that in PVST you ...
- 1,558
4
votes
Accepted
Tagged-only VLANs
What is the purpose of a vlan containing only tagged ports?
Likely, those (trunk) ports interconnect VLANs spanning multiple switches. It's also possible that a trunk leads to a VLAN-aware host or a ...
- 78.4k
3
votes
How can I change the IP address of a running switch (HP 2510)?
You normally would just overwrite it with e. g.:
vlan 1 ip address 10.10.10.11/8
But if you stay on the same subnet, the switch will complain:
The IP address (or subnet) 10.10.10.11/8 already exists.
...
- 133
3
votes
How can I change the IP address of a running switch (HP 2510)?
It can be problematic to change an address remotely. The best option is to do it in person from the directly attached console. To move the switch to a different subnet, that is indeed what is required....
- 30.9k
3
votes
HP ProCurve Auto WOL MAC Address of offline devices
an automated WOL system can save minutes of time per machine
I don't see how. Let's suppose a person carries the machine in, sets on desk, plugs in power, plugs in network. After all that, how hard ...
- 30.9k
3
votes
Dropping packets routed between VLANs
If the problem only happens between VLANs, you need to look at the router which is used to route between the VLANs. It may be overloaded on its CPU or buffers, but that is the common point between ...
- 97.3k
3
votes
Accepted
HP Procurve 5412zl Management unresponsive via IP when cpu high
There's a very simple answer. Management traffic such as SSH, HTTP, ICMP is handled by the CPU. The main purpose of the switch is traffic forwarding, and management traffic has the lowest priority. ...
- 880
3
votes
Help setting up multiple IP ranges on same subnet
There are a couple of things you could do:
Change the network mask to expand the address range. For example,
change the mask length to /23 to double , or /22 to quadruple,
the number of network ...
- 97.3k
3
votes
HP ProCurve 2524 - CLI Command to find Fiber Transceiver's Serial Number
show tech transceiver should work on the old Procurves, at least it does on the 2510 and 2600 series.
Somewhat newer Provision switches (2910, 2530, ...) support show interfaces transceiver [n] ...
- 78.4k
3
votes
HP ProCurve 2524 - CLI Command to find Fiber Transceiver's Serial Number
Try display transceiver interface <interface-id>.
- 107
3
votes
Is there a similar command to Cisco's "dir all" on a HP Procurve switch?
Comware switches (former 3Com aka H3C) seem to support dir but Provision ones don't.
You can check your firmware versions/files by running show flash.
Configuration files are displayed by show ...
- 78.4k
2
votes
Accepted
Creating an offline wireless network using UniFi UAP access points for use by iPads
Unifi are wireless Access Points (only)
Mesh is an inaccurate term for how they work, by the way(unless you put non-factory firmware on them). They CAN be configured in a "single-leaf" wireless ...
- 2,736
2
votes
Accepted
Creating one virtual switch that extends over two HP 2920-48G?
Actually your definition of stacking is correct, and your vendor's not. However he might be referring to traditional HP Stacking, which indeed isn't "true" stacking at all.
Bigger HP switches are ...
- 880
2
votes
HP 2920-48G PoE daisy-chain ARP cache problem
ARP is a layer-3 ("IP") technology. Under normal conditions an ethernet switch should have nothing at all in it's arp cache, because 100% of what it does is layer-2 ("ethernet") switching. The only ...
- 30.9k
2
votes
Dual Booting in to different VLAN DHCP servers for different OS's
There are several ways to address this. The one you enumerated requires doubling the network infrastructure -- leaving half of it unused all the time, which is not workable for you.
You could go ...
- 30.9k
Only top scored, non community-wiki answers of a minimum length are eligible