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  • HP ProCurve Port Mode Configuration Question

    - by SvrGuy
    We have a ProCurve Switch 2810-48G (J9022A). We need to disable auto negotiation on two ports and manually configure them to be full duplex gige ports. From the web GUI, Configuration Tab, Port Configuration sub tab, I am only presented with the option to configure the port as Auto - 1000. I take this to mean, auto negotiate duplex, manually configure the speed to be gige. How do I manually configure the port such that it is manually configured to use full duplex, 1000 mbs?

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  • iSCSI SAN Implementation with several ESXi hosts and two Equallogic SANs

    - by Sergey
    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 being redundant and fast so we want to improve it. I read several threads but get even more confused. The Procurve Switches are 2824. I know they don't support Jumbo Frames and Flow Control at the same time, but we have plans to upgrade to something like Procurve 3500yl. Any suggestions? I heard Dell Powerconnects 6xxx are pretty good but I'm not sure how they compare to HPs. There will be a 4-port Etherchannel (Link Aggregation) between the switches, and all control modules on SAN will be connected to different switches. Is there anything that will make the setup better? Are there better switches then Procurves 3500yl that cost less than 5k? What kind of bandwidth can I expect between ESXi hosts (they will also be connected to 2824 with multiple cables) and SANs?

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  • How to monitor the temperature of a HP Procurve 3500 switch via SNMP

    - by Murali Suriar
    I am attempting to poll the temperature of an HP ProCurve 3500YL switch remotely using SNMP. Looking at this MIB, it appears that the following OIDs: hpCpuTemperature 1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.6 hpPowerSupplyTemperature 1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.7 hpChassisTemperature 1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.8 Within the 'hpProcurveSysMib' should provide the data I need. However, whenever I attempt to access these OIDs, I receive the response: SNMPv2-SMI::enterprises.11.2.3.7.11.17.7.1.1.1.6 = No Such Object available on this agent at this OID Further investigation reveals that the switch in question does not appear to implement the parent hpProcurveSystem MIB: SNMPv2-SMI::enterprises.11.2.3.7.11.17.7.1.1 = No Such Object available on this agent at this OID Does anyone know of an alternative MIB implemented by the 3500 that will allow its temperature to be polled automatically?

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  • HP ProCurve Port Mode Configuration Question Mark 2

    - by SvrGuy
    We have a ProCurve Switch 2810-48G (J9022A). We need to disable auto negotiation on two ports and manually configure them to be full duplex gige ports. From the web GUI, Configuration Tab, Port Configuration sub tab, I am only presented with the option to configure the port as Auto - 1000. I take this to mean, auto negotiate duplex, manually configure the speed to be gige. From the CLI when I try to set 1000-full I get the following error: Value 1000-full is not applicable to port 39 (or whatever port I try) The exact commands I have entered are: config interface 39 speed-duplex 1000-full BTW: speed-duplex auto-1000 works ( I also tried full-1000 and that did not work either) How do I manually configure the port such that it is manually configured to use full duplex, 1000 mbs?

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  • HP Procurve 2610 intervlan routing

    - by user19039
    Can anyone tell me why inter vlan routing is working for all vlans except my newly created vlan 4/ I have an hp procurve 2610. Any help would be appreciated. I have basically this 1 switch with all unmanaged switches attached to the core. We have a second 2610 on port 28 Running configuration: ; J9085A Configuration Editor; Created on release #R.11.25 hostname "Core_HP" interface 22 speed-duplex 100-full exit ip routing snmp-server community "public" Unrestricted vlan 1 name "DEFAULT_VLAN" untagged 1-12,17-22,26-27 ip address 192.168.4.6 255.255.255.0 tagged 25 no untagged 13-16,23-24,28 exit vlan 2 name "WAN" untagged 28 ip address 10.254.254.3 255.255.255.0 exit vlan 3 name "Wireless" untagged 13-16,24 ip address 192.168.7.6 255.255.255.0 ip helper-address 192.168.4.2 tagged 27 exit vlan 35 name "guest" untagged 23 tagged 24 exit vlan 4 name "esxi" untagged 25 ip address 10.10.1.1 255.255.248.0 exit ip route 192.168.5.0 255.255.255.0 10.254.254.1 ip route 192.168.6.0 255.255.255.0 10.254.254.1 ip route 0.0.0.0 0.0.0.0 192.168.4.10 show ip route IP Route Entries Destination Gateway VLAN Type Sub-Type M etric Dist. ------------------ --------------- ---- --------- ---------- - --------- ----- 0.0.0.0/0 192.168.4.10 1 static 1 1 10.10.0.0/21 esxi 4 connected 0 0 10.254.254.0/24 WAN 2 connected 0 0 127.0.0.0/8 reject static 0 250 127.0.0.1/32 lo0 connected 0 0 192.168.4.0/24 DEFAULT_VLAN 1 connected 0 0 192.168.5.0/24 10.254.254.1 2 static 1 1 192.168.6.0/24 10.254.254.1 2 static 1 1 192.168.7.0/24 Wireless 3 connected 0 0 show ip Internet (IP) Service IP Routing : Enabled Default TTL : 64 Arp Age : 20 VLAN | IP Config IP Address Subnet Mask Prox y ARP ------------ + ---------- --------------- --------------- ---- ----- DEFAULT_VLAN | Manual 192.168.4.6 255.255.255.0 No WAN | Manual 10.254.254.3 255.255.255.0 No Wireless | Manual 192.168.7.6 255.255.255.0 No esxi | Manual 10.10.1.1 255.255.248.0 No guest | Disabled

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  • Issues connecting to HP ProCurve switches

    - by BriGuy
    We are having a very strange issue trying to connect to our infrastructure switches via SSH. When you first try connecting to them, the switches will prompt for the password - and then just sit there after it is entered. If you create a second SSH session to the switch (while letting the first one remain open and just sitting there) it will let you log right in. The switches are doing the same thing with RADIUS and local authentication. The other strange part to all of this, is that about 10 switches started doing it all at the same time. As far as actual configuration of the switches, nothing has changed. Occasionally, one switch will start working like normal, but then stop again. These are all HP ProCurve managed switches, but all different models/firmware. Some switches that are not working are using the same firmware as others that are working. UPDATE: 20130312 I am also seeing this same behavior when trying to use telnet. The first telnet session just hangs there, and the second telnet session will let me log in. Rebooting the switches seems to get them working, but I still have 5 production switches that cannot easily be rebooted because of their production roles. Is anyone aware of anything else that can be switched on/off that may reset the logon for remote management or something like that?

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  • Using a Level 2 switch as a core switch

    - by imtech
    I have a small user base of about 20 people on at a time and spiking up to about 80 people during peak times. Most people (80+%) are connected over our Aruba managed wireless system. We have a Windows Domain. We have 3 24-Port switches all connecting back to a central 48-port switch where additional access ports, firewall, servers, and wireless controller all centrally connect back to. It's a flat network with dumb switches. I'm in the process of upgrading our infrastructure. Cisco pricing for switches is pretty high for us so I've been looking at HP Procurves which seem to be within our budget range. I want to eventually make use of 802.1x, SNMP, QoS for possible VOIP upgrades, VLAN to separate guest VLAN from authenticated users, and other more advanced features. PoE would be nice but that's probably too expensive for us. I was thinking of having our core switch be a Procurve 2610 and the rest of our switches that centrally connect to it be Procurve 2510s. A true and full blown level 3 switch is way out of our price range but a 2610 seems to be good enough for us. The 2610 does static routing which ought to be good enough for us but I'm in unfamiliar territory so I'm looking for any gotchas. Also, should all the switches be 2610s or just the core switch? Do I even need the 2610, can I just go with all 2510s? I'm new to VLANs as well so I'm not sure what it is I need but I would like an affordable infrastructure that won't need replacing 2-3 years down the line because I choose a product that was lacking.

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

    - by kce
    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 is connected via a WAN Transparent Lan Service (TLS) link. Let's work backwards from the network edge: The Debian server has an external connection attached to eth0. The internal interface is eth1, which is connected directly from our Hyper-V host to the 5406. The port that eth1 is attached to is setup as Trk12. The 2610 is attached to Trk9 (which trunks a whole slew of VLANs - Trk9 is our TLS head). I can successfully ping the management IP addresses for my VLAN from both switches but I cannot ping, from either switch, the virtual interface for my new VLAN on the Debian-base router and firewall. The existing VLAN works fine. What gives? The port eth1 is attached to is a trunk, the existing VLAN (ID 98) is untagged on the trunk, the new VLAN (ID 198) is tagged. VLAN 198 is tagged on Trk9 on the 5406 and on the 2610. I can ping the other switch's management IP (10.100.198.2 and 10.100.198.3) from the other respective switch. That leg of the VLAN works - however I cannot communicate with eth1.198's 10.100.198.1. I feel like I'm missing something elementary but what it is remains illusive to me. I suspect the issue is with the vconfig created eth1.198. It should pass the tagged VLAN 198 packets correct? But they cannot seem to get any further than the 5406. Communication on the existing VLAN 98 works fine. From the Debian box: eth1: eth1 Link encap:Ethernet HWaddr 00:15:5d:34:5e:03 inet addr:10.100.0.1 Bcast:10.100.255.255 Mask:255.255.0.0 inet6 addr: fe80::215:5dff:fe34:5e03/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:12179786 errors:0 dropped:0 overruns:0 frame:0 TX packets:20210532 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1586498028 (1.4 GiB) TX bytes:26154226278 (24.3 GiB) Interrupt:9 Base address:0xec00 eth1.198: eth1.198 Link encap:Ethernet HWaddr 00:15:5d:34:5e:03 inet addr:10.100.198.1 Bcast:10.100.198.255 Mask:255.255.255.0 inet6 addr: fe80::215:5dff:fe34:5e03/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1496 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:72 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:3528 (3.4 KiB) # cat /proc/net/vlan/eth1.198: eth1.198 VID: 198 REORDER_HDR: 0 dev->priv_flags: 1 total frames received 0 total bytes received 0 Broadcast/Multicast Rcvd 0 total frames transmitted 72 total bytes transmitted 3528 total headroom inc 0 total encap on xmit 39 Device: eth1 INGRESS priority mappings: 0:0 1:0 2:0 3:0 4:0 5:0 6:0 7:0 EGRESS priority mappings: # ip route 10.100.198.0/24 dev eth1.198 proto kernel scope link src 10.100.198.1 206.174.64.0/20 dev eth0 proto kernel scope link src 206.174.66.14 10.100.0.0/16 dev eth1 proto kernel scope link src 10.100.0.1 default via 206.174.64.1 dev eth0 # iptables -L -v Chain INPUT (policy DROP 6875 packets, 637K bytes) pkts bytes target prot opt in out source destination 41 4320 ACCEPT all -- lo any anywhere anywhere 11481 1560K ACCEPT all -- any any anywhere anywhere state RELATED,ESTABLISHED 107 8058 ACCEPT icmp -- any any anywhere anywhere 0 0 ACCEPT tcp -- eth1 any 10.100.0.0/24 anywhere tcp dpt:ssh 701 317K ACCEPT udp -- eth1 any anywhere anywhere udp dpts:bootps:bootpc Chain FORWARD (policy DROP 1 packets, 40 bytes) pkts bytes target prot opt in out source destination 156K 25M ACCEPT all -- eth1 any anywhere anywhere 215K 248M ACCEPT all -- eth0 eth1 anywhere anywhere state RELATED,ESTABLISHED 0 0 ACCEPT all -- eth1.198 any anywhere anywhere 0 0 ACCEPT all -- eth0 eth1.198 anywhere anywhere state RELATED,ESTABLISHED Chain OUTPUT (policy ACCEPT 13048 packets, 1640K bytes) pkts bytes target prot opt in out source destination From the 5406: # show vlan ports trk12 detail Status and Counters - VLAN Information - for ports Trk12 VLAN ID Name | Status Voice Jumbo Mode ------- -------------------- + ---------- ----- ----- -------- 98 WIFI | Port-based No No Untagged 198 VLAN198 | Port-based No No Tagged

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  • Multiple VLAN on one switch port

    - by Macropus
    I have a HP ProCurve 1810G-8 which I currently use as a normal switch between 3 servers and a firewall. 2 of the servers are ESXi hosts, and one is a Nexentastor box with 2 iSCSI target LUNs. As the iSCSI traffic is on the same LAN as all other traffic, I would like to switch this to use a SAN for iSCSI traffic and the LAN for all other traffic. The Nexentastor box only has 2 NICs, and as such, with a physical arrangement, I presume that one must be plugged into the SAN VLAN and one on the LAN VLAN ports of the switch. Is there a way to have multiple VLANs over the same port? e.g. the Nexentsator box has 2 NICs, both plugged into the switch, both ports with access to both of the VLANs?

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  • Connecting a USB laptop to a RJ45 serial port

    - by Jon
    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 console access. My laptop has USB ports but no serial port. In fact, there isn't a single computer in the office with a serial port. I've seen USB-to-DB9 adapters, but I need to go from USB to RJ45 (serial). How would I go about accomplishing this? Do I need two adapters? Will USB-to-DB9 and then DB9-to-RJ45 work? Thanks in advance.

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  • How to calculate required switch speed based on network usage?

    - by tobefound
    I have a 48 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 REALLY mean? Where do I start when trying to figure out if my office (with 70 employees) will be well setup with this switch? How to calculate through-put based on a user average load of X MB per day? 90% of the folks will only be sending email, access random websites, etc... the other 10% will be conducting heavier tasks like moving image files (10 MB) across network shares, constant external FTP streams through the switch to a server etc... Is this switch good enough?

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  • Spanning-tree setup with incompatible switches

    - by wfaulk
    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 manage the loops with a spanning-tree protocol. However, our connection to the datacenter is provided by two uplinks, each to a Cisco 3750. The datacenter's switches are handling the redundant connection using PVST spanning-tree, which is a Cisco-proprietary spanning-tree implementation that my HP switches do not support. It appears that my switches are not participating in the datacenter's spanning-tree domain, but are blindly passing the BPDUs between the two switchports on my side, which enables the datacenter's switches to recognize the loop and put one of the uplinks into the Blocking state. This is somewhat supposition, but I can confirm that, while my switches say that both of the uplink ports are forwarding, only one is passing any real quantity of data. (I am assuming that I cannot get the datacenter to move away from PVST. I don't know that I'd want them to make that significant of a change anyway.) The datacenter has also sent me this output from their switches (which I have expurgated of any identifiable info): 3750G-1#sh spanning-tree vlan nnn VLAN0nnn Spanning tree enabled protocol ieee Root ID Priority 10 Address 00d0.0114.xxxx Cost 4 Port 5 (GigabitEthernet1/0/5) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32mmm (priority 32768 sys-id-ext nnn) Address 0018.73d3.yyyy Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Gi1/0/5 Root FWD 4 128.5 P2p Gi1/0/6 Altn BLK 4 128.6 P2p Gi1/0/8 Altn BLK 4 128.8 P2p and: 3750G-2#sh spanning-tree vlan nnn VLAN0nnn Spanning tree enabled protocol ieee Root ID Priority 10 Address 00d0.0114.xxxx Cost 4 Port 6 (GigabitEthernet1/0/6) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32mmm (priority 32768 sys-id-ext nnn) Address 000f.f71e.zzzz Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Gi1/0/1 Desg FWD 4 128.1 P2p Gi1/0/5 Altn BLK 4 128.5 P2p Gi1/0/6 Root FWD 4 128.6 P2p Gi1/0/8 Desg FWD 4 128.8 P2p The uplinks to my switches are on Gi1/0/8 on both of their switches. The uplink ports are configured with a single tagged VLAN. I am also using a number of other tagged VLANs in my switch infrastructure. And, to be clear, I am passing the tagged VLAN I'm receiving from the datacenter to other ports on other switches in my infrastructure. My question is: how do I configure my switches so that I can use a spanning tree protocol inside my switch infrastructure without breaking the datacenter's spanning tree that I cannot participate in?

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  • HP network discovery service flooding network with SLP / SRVLOC requests

    - by Chipmunk
    I am having trouble with "HP Network discovery service" which I think is responsible for flooding my network with SLP/SRVLOC requests. This has happened on multiple occasions on different devices where some HP printer software installed. Have I misconfigured something in my network that causes this? Or is the HP service at fault? The destination address (224.0.1.60) and SLP confirm that it is a HP service that is doing this. Also the service url in the packets read: "service:x-hpnp-discover:" further confirms this. Why is this happening? I doubt HP would release faulty software like this? So this leaves me thinking that maybe some settings on the HP Procurves are not set up properly? Comments and suggestions welcome, thank you. Kind regards, Chris

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  • Linksys SRW248g4p and hp procurves

    - by Garfield81
    We've got about 3 procurves linked up with about 5 linksys srw248g4p. Pinging between the Procurves I get ping time between 1-2 ms and pinging between the linksys the ping time are averaging 40 ms. I have evening tried pinging between two linksys switches that are connected to each other directly using the GB ports. There have no modification done to the switches and the firmware seems to be uptodate. Any suggestions would be appreciated.

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  • Configure spanning tree from HP to Cisco hardware

    - by Tim Brigham
    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 the spanning tree on these systems to make this function correctly? From the documents I've looked at it looks like I need to set both sets of hardware to use MST mode but I'm not sure past that point. The trunking, etc is all set up as needed. HP Switch 1 A4 connected to Cisco 1/0/1. HP Switch 2 B2 connected to Cisco 2/0/1. HP Switch 1 A2 connected to HP Switch 2 A1. HP Switch 1 show spanning-tree Multiple Spanning Tree (MST) Information STP Enabled : Yes Force Version : MSTP-operation IST Mapped VLANs : 1-4094 Switch MAC Address : 0021f7-126580 Switch Priority : 32768 Max Age : 20 Max Hops : 20 Forward Delay : 15 Topology Change Count : 352,485 Time Since Last Change : 2 secs CST Root MAC Address : 0018ba-c74268 CST Root Priority : 1 CST Root Path Cost : 200000 CST Root Port : 1 IST Regional Root MAC Address : 0021f7-126580 IST Regional Root Priority : 32768 IST Regional Root Path Cost : 0 IST Remaining Hops : 20 Root Guard Ports : TCN Guard Ports : BPDU Protected Ports : BPDU Filtered Ports : PVST Protected Ports : PVST Filtered Ports : | Prio | Designated Hello Port Type | Cost rity State | Bridge Time PtP Edge ----- --------- + --------- ---- ---------- + ------------- ---- --- ---- ... A1 | Auto 128 Disabled | A2 10GbE-CX4 | 2000 128 Forwarding | 0021f7-126580 2 Yes No A3 10GbE-CX4 | Auto 128 Disabled | A4 10GbE-SR | 2000 128 Forwarding | 0021f7-126580 2 Yes No HP Switch 2 show spanning-tree Multiple Spanning Tree (MST) Information STP Enabled : Yes Force Version : MSTP-operation IST Mapped VLANs : 1-4094 Switch MAC Address : 0024a8-cd6000 Switch Priority : 32768 Max Age : 20 Max Hops : 20 Forward Delay : 15 Topology Change Count : 19,623 Time Since Last Change : 32 secs CST Root MAC Address : 0018ba-c74268 CST Root Priority : 1 CST Root Path Cost : 202000 CST Root Port : A1 IST Regional Root MAC Address : 0024a8-cd6000 IST Regional Root Priority : 32768 IST Regional Root Path Cost : 0 IST Remaining Hops : 20 Root Guard Ports : TCN Guard Ports : BPDU Protected Ports : BPDU Filtered Ports : PVST Protected Ports : PVST Filtered Ports : | Prio | Designated Hello Port Type | Cost rity State | Bridge Time PtP Edge ----- --------- + --------- ---- ---------- + ------------- ---- --- ---- ... A1 10GbE-CX4 | 2000 128 Forwarding | 0021f7-126580 2 Yes No A2 10GbE-CX4 | Auto 128 Disabled | B1 SFP+SR | 2000 128 Blocking | a44c11-a67c80 2 Yes No B2 | Auto 128 Disabled | Cisco Stack 1 show spanning-tree ... (additional VLANs) VLAN0100 Spanning tree enabled protocol ieee Root ID Priority 1 Address 0018.bac7.426e Cost 2 Port 107 (TenGigabitEthernet2/1/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32868 (priority 32768 sys-id-ext 100) Address a44c.11a6.7c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Te1/1/1 Desg FWD 2 128.53 P2p Te2/1/1 Root FWD 2 128.107 P2p

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  • PXE-E32 TFTP Open Timeout While Attempting to PXE Boot from Windows Deployment Services

    - by bschafer
    I'm running Windows Deployment Services on Windows Server 2008 R2 on top of an ESX 4.0 box. This is the only function of this VM instance, although it had previously functioned as an AD Domain Controller. My DHCP server is running on our primary Domain Controller, which is also Server 2008 R2, but running on metal. Everything was working perfectly until we recently had our backup generator fail during a power outage, causing all of our servers and networking equipment to lose power for a period of time. When we brought all of our equipment back up, everything was working as expected except for WDS. Our network is split up into several different vlans. Now, depending on which vlan the client computer is on, it's behaving differently when attempting to PXE boot into WDS. Our servers are located on the 10.55.x.x vlan, which, due to the nature of it, has no DHCP server active in it. The first computer we plugged in happened to be in the 10.99.x.x vlan, which is supposed to be reserved for network management devices (i.e. switches), but we've been using it occasionally otherwise. That computer gave us PXE-E11 ARP Timeout errors. When we moved to a different computer on the 10.19.x.x vlan (for general purpose use), it finally gets an IP from DHCP, but it presents us with a very stumping PXE-E32 TFTP Open Timeout error. Before the power outage, it didn't matter which vlan a device was on; it would PXE boot and image just fine. I've made no changes to anything server-side. Everything is configured exactly the same way it was on my WDS and DHCP servers as before the power outage. I've tried several different computers, including different models. All of this, combined with the quirky behavior depending on the vlan, makes me think something went wrong in one or more of our switches, probably because of the power outage. Unfortunately, I'm no network guy, and I know very little about how to configure our switches properly. Is this an issue with switches, etc? If so, how can I fix it? Is there some magical option I'm not aware of? Does anybody out there have any hunches? I've pretty much exhausted my ideas. Our main switch is an HP Procurve 5406. We also have 3x HP Procurve 4208 switches. The ESX Server is an HP ProLiant DL380 G6. The WDS VM is currently using the VMXNET3 network adaptor, but we've also tried the E1000 adaptor.

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  • How do you keep track of what's connected to your switches?

    - by Kamil Kisiel
    Currently we manually document the connections to the ports of our switches. Of course, maintenance is a chore, and the documentation is out of date as soon as you save it. Are there any tools for querying switches, preferably via SNMP, that can tell you what is connected on the other end? For the record, we use primarily HP ProCurve switches.

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  • Does Gigabit degrade all ports to 100 megabit if there is a 100 megabit device attached?

    - by hjoelr
    Our company is buying some HP Procurve managed gigabit switches to replace some of our core switches. However, we aren't able to upgrade all of our switches from 100Mb to Gigabit switches. I think I know the answer but I'm not exactly sure. If we plug those 100Mb switches (or even a 100Mb device) into those Gigabit switches, will the performance of the entire switch drop to 100Mb or will just that one port work at 100Mb?

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  • Linux bonded Interfaces hanging periodically

    - by David
    I've several hosts that are showing problems with connectivity. When working from the command line, for example, typing is frozen for a second or so, then recovers - then it does it again. The most egregious example host would freeze (input) for 15-30 seconds, then recover and go out 5 seconds later. Switching cables didn't do anything - but removing one of the physical cables caused everything to clear up instantly (which why I think this is a network problem). Looking at the network I couldn't see any packets floating that would explain this. These ethernet interfaces (Gigabit Dell) were working normally previously, but since we moved the systems - and put them on a new set of switches - this has been a problem on multiple theoretically identically-configured hosts. The original switches were an HP Procurve 1810-24G and an HP Procurve 1800-24G connected with LLDP; the new switches are both Cisco SG 200-26, which I understand are rebranded Linksys switches. Is this caused by a problem with the switches? Is it the switch configurations? Are the Cisco switches incapable of handling this? I don't see where the configuration is located; I searched the usual /etc/sysconfig/network/devices but there's nothing in there about options (like mii polling) and nothing about the method of balancing the two. Searching scripts, I can't find anything in /etc/init.d/network either. The hosts are almost all Red Hat Enterprise Linux 5.x systems (5.6, 5.7) but some are Ubuntu Server 10.04.3 Lucid Lynx. I need help with both if it comes to that. UPDATE: We're also seeing some problems with servers on the original switches. The HP switches and the Cisco switches are also interconnected (temporarily); there is a cable run from one switch to the next. Pings on any of these hosts show about one ICMP packet out of every 5-6 getting dropped (timed out). Could there be an interaction between the two switches? Oh, and the hosts are using bonding with Balance-RR as the method.

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  • If fiber runs 1gig fine, are there any concerns when considering upgrading to 10gig transceivers?

    - by Eric
    We had fiber installed (connecting ~10 buildings) around 5 years ago and it has been working great. The initial setup involved Procurve 2848 and 2824 switches w/ 1gig transceivers. However, lately we have been considering upgrading our network both to increase bandwidth and possibly add VOIP. However, a lot of this is assuming that we can just use pop the existing fiber into 10gig XFP transceivers in better switches and call it a day. If the fiber works fine at 1G does that mean it should be fine for 10gig? If not, how can we confirm that our existing fiber trunks will work, preferably in an affordable fashion?

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  • If a managed network switch were to overheat, would you consider it no longer reliable?

    - by Scott Szretter
    Here is the scenario - I have a network switch, one of several in a stack. It's fan failed. Soon, there were reports of users with network issues. After quickly replacing the fan, the users were fine, network issues were resolved. I assume the unit was overheating, and thus failing somehow. Today someone suggested to me, that I should not assume the unit is 100% reliable anymore. So what do you think, would an overheat condition (less than 1 day with the fan stopped) potentially cause permanent damage that could at some point come to the surface as future network failures/issues? If it matters, we are talking managed switches such as 3Com/HP SuperStack , ProCurve or PWR-Plus.

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  • Why DELL PowerConnect and Juniper are so rare ? Why do enterprises stick with Cisco ?

    - by Kedare
    Hello ! I have a little question, I'm actually studing IT in France, and when looking on alternative on the very [...] very expensive Cisco equipments, I've found Juniper and DELL PowerConnect pretty attractive on features and price, but I rarely see something else than the classics Cisco/LinkSys, HP Procurve and Netgear.. Why it's so rare to find those switch ? They looks really great but... I've never seen any Juniper or Powerconnect... Why do enterprises stick with the expensive Cisco ? I've tried to find how to buy both, it's quite easy with PowerConnect, everything is on the DELL website, but it looks it's very hard to find Juniper equipments in France :( Thank you !

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  • Anyone love/hate the PowerConnect line of switches from Dell?

    - by Rob Bergin
    I am looking at replacing some unmanaged 16 port store bought GB switches and wanted to go with Cisco but it may be cost prohibitive. Instead I am looking at ProCurve or Dell's PowerConnect line up. I am looking for SNMP, Management, VLANs, and SFLOW would icing on the switch cupcake. I would get the 6224 or the 6248 and then maybe add the RPS-600 to it for redundant power. I think the RPS-600 supports multiple switches. Rackspace is also a little challenge so I am trying to do it with as little Rack Units as possible. Ideally I would go with two 6224's or a single 6248 and then do two VLANs. Thanks for any feedback. Rob

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