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40
votes
4answers
16k views

How exactly & specifically does layer 3 LACP destination address hashing work?

Based on an earlier question over a year ago (Multiplexed 1 Gbps Ethernet?), I went off and setup a new rack with a new ISP with LACP links all over the place. We need this because we have individual ...
9
votes
3answers
8k views

Server-to-Switch Trunking in Procurve switch, what does this mean?

I am looking to set up switch redundancy in a new datacenter environment. IEEE 802.3ad seems to be the go-to concept on this, at least when paired with a technology that gets around the "single ...
9
votes
1answer
3k views

Admin mode on Procurve Switches

Not being a network expert, I spent some time configuring my network, until I found my mistake: On my HP ProCurve Switch 1810G, I thought that "Admin mode" means whether the administrative interface ...
8
votes
3answers
7k views

Setup of HP ProCurve 2810-24G for iSCSI?

I have a pair of ProCurve 2810-24G that I will use with a Dell Equallogic SAN and Vmware ESXi. Since ESXi does MPIO, I am a little uncertain on the configuration for links between the switches. Is a ...
8
votes
2answers
555 views

Network traffic doesn't appear to leave the trunk

I'm in the process of staging up some new virtualization servers, and part of that is to get some higher-bandwidth pipes into them. The ultimate goal is to bind 4 GigE ports into a single trunk ...
8
votes
3answers
2k views

HP Procurve Issue Passing Multiple VLANs over a link

Just to start off with I am a Cisco guy that got placed into an HP project. Basic topology overview from outside in: ASA 5505 with two Ethernet connections to a 2610 switch. This switch is then ...
8
votes
2answers
4k views

dhcp-snooping option 82 drops valid dhcp requests on 2610 series Procurve switches

We are slowly starting to implement dhcp-snooping on our HP ProCurve 2610 series switches, all running the R.11.72 firmware. I'm seeing some strange behavior where dhcp-request or dhcp-renew packets ...
7
votes
1answer
2k views

How to configure a HP Procurve network for IPv4+IPv6

The setup: We are an apartment complex with approximately 1700 units. Every apartment has internet with an ethernet plug in each. The network has 60 HP 2910al-48G switches connected to a central HP ...
6
votes
2answers
3k views

HP to Cisco spanning tree root flapping

Per a recent question I recently configured both my HP (2x 2900) and Cisco (1x 3750) hardware to use MSTP for interoperability. I thought this was functional until I applied the change to the third ...
6
votes
3answers
1k views

Automatic rollout of VLAN (and other) configs to Procurve switches

I've got a pile of switches connecting everything together at our DC, 50 racks or so worth of kit. It's starting to be a problem to login to every single one of them to make configuration changes -- ...
5
votes
2answers
1k views

HP ProCurve 2920 switch stack topology for TWO switches? Ring vs. Chain vs. trunk?

I have a customer whose two HP ProCurve 2910al PoE switches have failed. This was backing a VoIP deployment for a small call center. They are interested in replacement PoE switches, but there's a ...
5
votes
2answers
1k views

Multiple vlan issue with procurve switch

I have a cisco asa5505 as my rtr/fw(10.1.3.254). I have vlan 1 and vlan 3. Vlan 1 is my default all access vlan. Vlan 3 is my Guest(dmz) vlan. I can't seem to get a dhcp ip address when my laptop ...
5
votes
1answer
315 views

ProCurve network expansion

I've hit a bit of a wall with our network scale-out. As it stands right now: We have five ProCurve 2910al switches connected as above, but with 10GbE connections (two CX4, two fiber). This fully ...
5
votes
1answer
1k views

Procurve Primary VLAN

I'm trying to depreciate usage of VLAN 1 on my ProCurve switches; 1 is unused. I understand that VLAN 1 must exist, but I want to remove it from all ports, especially trunks between switches. The ...
5
votes
2answers
2k views

Fault Tolerance with 2 HP ProCurve 2824 Switches

Looking for some advice on our current situation. We have a full rack at a data center that contains 1 uplink to the data center distribution layer switch (we don't control this), 2 HP ProCurve 2824's ...
4
votes
1answer
2k views

10 GigE interfaces limits single connection throughput to 1 Gb on a ProCurve 4208vl

The setup is as follow : 3 Linux servers with Intel CX4 10 GigE controllers and an X-Serve with a Myricom 10 GigE CX4 controller are connected to a ProCurve 4208vl switch, with a myriad of other ...
4
votes
3answers
5k views

Connecting a USB laptop to a RJ45 serial port

We are about to get our first managed switch at work (Procurve 2520G-24-PoE), and this lowly programmer gets to put on his admin hat and try to configure it. The switch has an RJ45 serial port for ...
4
votes
2answers
2k views

iSCSI SAN Implementation with several ESXi hosts and two Equallogic SANs

I work for a small state college. We currently have 4 ESXi hosts (all made by Dell), 2 EqualLogic SANs (PS4000 and PS4100) and a bunch of old HP Procurve switches. The current setup is very far from ...
4
votes
2answers
286 views

How do I remove (un-apply) a named filter from a Procurve switch port using the CLI?

EDIT: Edited my examples to reflect that I was indeed attempting this with the switch in "configure" mode. Still no joy. EDIT: I've done some more searching on this issue. I just can't seem to see it ...
4
votes
3answers
921 views

will heavy network traffic affect other connections on HP ProCurve V1810-48G?

I have a HP ProCurve V1810-48G switch with a few servers running Citrix XenServer connected to it (everything in one rack). The switch is almost in its default configuration (no VLAN, no port ...
4
votes
1answer
1k views

Setting up Multicast NLB Cluster with HP 6120XG Switch

How can I setup an NLB cluster across 2 blades connected via a HP 6120XG Switch? All of the guides are for Cisco and setup static ARP entries on the switch but that is not possible on the HP Switch. ...
3
votes
2answers
254 views

HP ProCurve 5406zl does not accept direct attach cable with error “Not an HP Networking transceiver”

I have an HP 5406zl switch running the latest firmware in the non-early release branch (K.15.14.0007, ROM K.15.30) and it is not accepting direct attach SFP+ cables in its SFP+ module. The module is a ...
3
votes
3answers
2k views

What do switches do to tagged and untagged VLAN packets?

Let's say we have a 4-port switch that is VLAN capable. 1 2 3 4 Port 1 is TAGGED to VLAN10` and `UNTAGGED to Default_VLAN(1) Port 2 is UNTAGGED to VLAN10 Port 3 is UNTAGGED to ...
3
votes
2answers
2k views

How to calculate required switch speed based on network usage?

I have a 48 100Mbit/s port HP Procurve Switch 2610 (J9088A) that can handle 13.0 million PPS (packets per second) and features wire speed switching capacity at 17.6Gbps. First off, what does that ...
3
votes
1answer
4k views

Procurve 2810 command line - reassigning ports to a different VLAN

A very basic question, but my googling has failed to find an answer... At present the VLAN config looks like this: vlan 1 name "DEFAULT_VLAN" untagged 1 ip address 10.200.1.134 ...
3
votes
1answer
924 views

HP Procurve Core Switch Architecture

I want to build a new 'core' for our network. We currently have a 3com 4060 switch acting as the core, connecting all the other TOR and access switches together. The goal is to add resilience into ...
3
votes
1answer
535 views

HP 4204vl (J8770A) non-blocking switching capacity

On the information page for the above mentioned switch, it says "Supports a maximum of 96 autosensing 10/100 ports or 96 autosensing 10/100/1000 ports or 16 mini-GBICs or 4 10-GbE ports, or a ...
3
votes
1answer
2k views

Rate Limiting with HP ProCurve 5406 QOS

Is it possible to enable an absolute value rate limit using QOS on a HP ProCurve 5406 switch for a particular IP address on a specific port? We have a 10Mbps head end connection for multiple ...
3
votes
1answer
340 views

HP Procurve 2512/2524 protected port, source port filter or similar?

HP Procurve switches usually have a setting so that the ports are told which other ports they can communicate with. An easy setup using this is to only allow communication with the uplink, so that no ...
3
votes
1answer
845 views

Does HP IRF work the way I think it does?

I finally have approval to better centralize our Ethernet. When last I left off I was looking to the future to figure out how best to handle expansion. Now, I have answers. I now have a pair of A5820 ...
3
votes
1answer
864 views

vconfig created virtual interface and trunking - is the the interface untagged or tagged for that VLAN ID?

I am trying to setup an additional VLAN on our Debian-based router/firewall (which exists as a virtual machine on Hyper-V), our core switch (an HP Procurve 5406) and a remote HP ProCurve 2610 that ...
3
votes
2answers
8k views

HP Procurve 1800 Switch-to-Switch Trunks and LACP (and VLANs too!)

I am considering connecting two (and possibly three) HP Procurve 1800 switches together with trunks or with LACP. I can't find any substantial answer to my questions via Google or here. I did find ...
3
votes
2answers
331 views

ProCurve 1800 switch issue

I recently deployed ProCurve 1800-24G switches in place of some older ProCurve 2424M switches in my network. However, I'm having a serious problem with the switch connected to the router. It seems, ...
3
votes
1answer
2k views

HP Procurve MAC cache timeouts on long TCP sessions

We have a network of HP 2510G switches connected back to HP2912al for aggregation. We've noticed that long running connections like a MySQL DB dump start flooding out to all network ports once the ...
2
votes
2answers
2k views

Configure spanning tree from HP to Cisco hardware

I have three switches I'd like to configure in a loop - a Cisco stack (3750s) and two HP 2900 series. Each is connected to the next with a 10 gig backplane of one form or another. How do I configure ...
2
votes
2answers
3k views

VLAN security on HP ProCurve 1810G-24?

I'm looking into the managed switch HP ProCurve 1810G-24 to see if it can meet our office demands. The specs say it has IEEE802.1Q - whatever that means. Our office consists of four companies that ...
2
votes
2answers
133 views

Colocation, Full Rack, Layer2/Layer3 Clarification

We are moving from several 1U servers colo'ed out across several data centers to a full rack in a nearby data center for both physical access reasons, as well as having space for expansion. We also ...
2
votes
3answers
1k views

ProCurve ACL to prevent a subnet from leaving the switch

I have a single HP ProCurve 2610 in a remote location that is connected in with the rest of the network via SHDSL. There are two Layer-3 networks on this segment. ACLs are setup to deny one subnet ...
2
votes
1answer
179 views

Wifi hosts can't contact one another (but wired hosts on the same vlan can)

Our current network is vlan'd, and the wifi network is on its own separate vlan (130). To connect to the 130 vlan, you connect to the access point (a HP MSM310), which is connected to an HP Procurve ...
2
votes
1answer
10k views

Configuring VLAN's on two HP procurve switches

Trying to route a new ISP (Microwave link) from one of my out buildings to my computer room and hence my firewall. Old ISP came direct into firewall. In the outbuilding the Microwave modem connects ...
2
votes
2answers
116 views

Cannot disable mac restriction on port for HP Procurve 2626

I have a HP Procurve 2626 as the main trunk for several subnets in production. I am a UNIX systems administrator and not a networking guy, but I've worked with cisco switches and some of these HP ...
2
votes
2answers
523 views

Adding second HP 2410G-24 Switch

We have a single HP Procurve 2410G-24 Switch. For the sake of simplicity, there are 2 VLANS configured, and the ports are roughly equally split between them. VLAN1 (LAN) is for server LAN ...
2
votes
1answer
372 views

switch, procuve 2510, error: OS TFTP in prgrs, SNMP denied

I cannot reboot 2510-24 then I get this message: OS TFTP in prgrs, SNMP denied Smart as I am I just started a new TFTP download of latest firmware, but that is a no-go since another download is in ...
2
votes
1answer
279 views

Spanning-tree setup with incompatible switches

I have a set of eight HP ProCurve 2910al-48G Ethernet switches at my datacenter that are set up in a star topology with no physical loops. I want to partially mesh the switches for redundancy and ...
2
votes
2answers
694 views

VLAN Traffic changing source when captured at firewall

1) HP Switch config below 2) Fortinet Policy in attached image Right now, we are a flat network of roughly 320 wireless devices, and about 100 wired devices. We have a FortiGate 300C firewall with a ...
2
votes
1answer
818 views

Setup VLAN agnostic ports on HP ProCurve 1810G (Ingress Filter, Trunking)

I am wondering if it is possible to configure some ports of the web managed ProCurve Switch 1810G to participate in all VLAN traffic. Even if no VLAN with that ID has been set up inside the switch. ...
2
votes
1answer
422 views

Procurve 5400 10GB

I need some help for 10GB connection. I actually have a Procurve 5400zl series with some port SFP+ on V2 version module. We desperately need to connect a server with pci-x slot. what can I do to have ...
2
votes
1answer
7k views

HP Procurve 5406ZL - How to enable port-mirroring?

This is my first time asking a question here but I've been lurking around Serverfault and Superuser for a bit. I've tried searching for this but I have yet to find something that would be able to help ...
2
votes
1answer
621 views

HP switch 'mirror port' makes a Cisco switch port err-disabled due to keepalive loop-back

I'm trying to connect an HP ProCurve 5304xl switch to a Cisco 2950. The HP port I'm connecting to is described as a 'mirror port', which appears to be like a SPAN port except that it also allows ...
2
votes
1answer
547 views

Bonding NICs with Procurve 1400-24G switch

I was looking to bond two or three NICs together to increase throughput. Now, this should be straight forward if done computer to computer, but since there are 3 computers involved which require ...