There is an option in the D2D2503i network settings, which puts de backup appliance in high availability mode and should also increase throughput.
according to the user guide, this option requires a network switch, which supports port bonding.
now how do I have to configure our switch? does the switch require the LACP protocol? we attached our d2d2500 to an cisco 2960 switch and couldn't get the dual network port configuration working...
thanks for your help!
matthias
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The network mode that you need to select from the drop-down on the network config page is "High Availability" not "Dual Port". HA mode bonds the ports on the D2D together as a single port hence only one IP address is required. I don't know much about the Cisco 2960 but it should support trunked/bonded ports if it is relatively new and generally it is enabled by default. A quick web search seemed to indicate that it does (might be called Etherchannel by Cisco rather than LACP). Can you tell me more about the problem that you are seeing and errors reported?
"Dual Port" is a different mode is intended to be used when there are two separate networks connected to the D2D box, these networks MUST be on separate subnets otherwise configuration will fail.
Hope this helps, if not please post more questions and I will get back to you.
Hi, I'm also trying to get my D2D2503i to work in HA mode, but I've configured the interfaces and I can't get the device to talk LACP (802.3ad) with my cisco switches. It looks like there's something turned off in the D2D. My switch config (the relevant parts is):
I have three cisco 3750s, they're stacked and I've loaded software onto them that permits "inter-chassis" LACP within the same stack.
My switch shows the following: sh int port 2 Port-channel2 is down, line protocol is down (notconnect) Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000) Description: BackupD2D P1 MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 0/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Auto-duplex, Auto-speed, link type is auto, media type is unknown input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts (0 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 3 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out
so the port channel interface isn't up
switch#sh int gigabitEthernet 2/0/24 GigabitEthernet2/0/24 is up, line protocol is up (connected) Hardware is Gigabit Ethernet, address is 000f.2491.0198 (bia 000f.2491.0198) Description: BackupD2D P1 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 254/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output 00:00:20, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1165170 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 4170000 bits/sec, 384 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 126833117 packets input, 117545249772 bytes, 0 no buffer Received 16 broadcasts (15 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 15 multicast, 0 pause input 0 input packets with dribble condition detected 19740999 packets output, 1638237595 bytes, 0 underruns 435809 output errors, 0 collisions, 5 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out switch#sh int gigabitEthernet 3/0/1 GigabitEthernet3/0/1 is up, line protocol is up (connected) Hardware is Gigabit Ethernet, address is 000f.349b.6401 (bia 000f.349b.6401) Description: BackupD2D P1 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX input flow-control is off, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output 00:00:25, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 871550 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 2901000 bits/sec, 390 packets/sec 24170205 packets input, 4615803009 bytes, 0 no buffer Received 381 broadcasts (10 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 10 multicast, 0 pause input 0 input packets with dribble condition detected 208547868 packets output, 179541145827 bytes, 0 underruns 435775 output errors, 0 collisions, 5 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 PAUSE output 0 output buffer failures, 0 output buffers swapped out
and the LACP shows:
switch#sh lacp 2 internal Flags: S - Device is requesting Slow LACPDUs F - Device is requesting Fast LACPDUs A - Device is in Active mode P - Device is in Passive mode
Channel group 2 LACP port Admin Oper Port Port Port Flags State Priority Key Key Number State Gi2/0/24 SA indep 32768 0x2 0x2 0x4E 0x7D Gi3/0/1 SA indep 32768 0x2 0x2 0x6D 0x7D switch#sh lacp 2 neighbor Flags: S - Device is requesting Slow LACPDUs F - Device is requesting Fast LACPDUs A - Device is in Active mode P - Device is in Passive mode
Channel group 2 neighbors
Partner's information:
LACP port Admin Oper Port Port Port Flags Priority Dev ID Age key Key Number State Gi2/0/24 SP 0 0000.0000.0000 4294967s 0x0 0x0 0x0 0x0 Gi3/0/1 SP 0 0000.0000.0000 4294967s 0x0 0x0 0x0 0x0
So LACP isn't being seen on the interfaces, on the last command the SP sometimes changes to SA (goes from passive to active) when I reset the interfaces.
The main reason I'm trying this is because my verify times with symantec backup exec 12.5 are too high, it takes more time to verify than to backup 65GB. If this is normal, it would also help for you guys to point it out since I don't have a lot of experience with D2Ds.
I finally managed to get the HA mode working on my Cisco switch .
It seems, that the D2D25000 appliance is not LACP capable. Fortunately, you can create etherchannel on Cisco switches without the need of LACP or PAgP by selecting the ON keyword at the end of the channel-group command. Below you can find my etherchannel configuration on my Cisco 2960 switch for the D2D2500 appliance.
I was hoping there was a way to enable LACP on the D2D, but well, I guess it's gonna be "manual failover" then. Do you have any recommendations on the load balancing scheme?
I cannot get this configuration to work. I have my etherchannel set to On(no lacp). Status says working but I cannot access the web admin nor can backup exec see it. when I turn off the etherchannel it works again
I have the exact same problem. When I enable port bonding on my cisco switch (etherchannel), I can no longer access the D2D 2504 by ping, backup exec or HTTP. I tried the on option and it still didn't work. LACP is not enabled.
I have an open case with HP but noone will answer the question: case history: me: what teaming technology is used on the d2d device when in high availability mode. How do I configure the etherchannel on the cisco switch to recognize the team?
hp: Hi there, The High Availability mode provides increased bandwidth, but both network ports must be connected to the same switch, which must support port bonding. And is set up throu the Web Management Interface. Single port configuration is the default mode.
me: What standard does it conform to? Is it lacp compatitable?
me 5 days later: What is the status of this? Still waiting on answer to the port bonding standard the device uses and how to setup the etherchannel on a cisco switch
me 5 days after that: Is anyone ever going to answer my question? This is horrible turn-around time for something in warranty
me same day: Thank you for putting me on hold for 40 minutes then hanging up on me. HP support is top notch
The current implementation of "High Availability" mode ports on D2D products provides port failover and some limited level of bandwidth aggregation. It uses Linux bonding mode 5 (adaptive transmit load balancing), this does not required LACP or Etherchannel configuration (in fact on Cisco switches configuring LACP/Etherchannel will result in connections not being possible). So take any ports on the switch out of LACP/Etherchannel mode and it should work.
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