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7
votes
1answer
195 views
+100

Layer 2 Loop Avoidance: Three Switches in Series

I know this seems like a homework question, but it's actually part of a larger project (and network) and need to break it down into chunks so I'm clear with what I'm doing. I've never worked with ...
5
votes
2answers
98 views

LACP vs 802.3ad

I’m looking to create an aggregation on a Solaris box using dladm. I understand that once the aggregation is created, 802.3ad will be used to balance the load depending on the policy (L2, L3 or L4). ...
0
votes
1answer
38 views

ESXi and link aggregation to another system

Can I aggregate two or more interface on ESXi 5.1u1 to connect (without a switch) another system that support this type of connection? I want create a back-to-back link aggregation as like descripted ...
1
vote
0answers
18 views

Configuring LACP across a IBM B50G switch stack

Is it possible to configure LACP (Link aggregation control protocol) that spans across two IBM B50G stacked switches. Below is an illustration of what I am trying to accomplish. I have currently ...
4
votes
1answer
142 views

Is is possible to put a tagged vlan on one physical interface on a Force10 S50N switch?

I servers that have a shared ethernet port for IPMI and the first NIC. They have 4-1GbE nics. I would like to bond the nics via LACP while still being able to access the IPMI over a tagged vlan only ...
2
votes
2answers
195 views

Does LACP routing type have to be the same on all ends?

i was wondering if the routing mechanism for LACP (source / destination MAC, source+destination MAC, source / destination IP, source+destination IP) has to be the same within one LACP trunk* between ...
0
votes
2answers
170 views

Using NFS-root with bonded interfaces

I would like to configure our servers to boot with an NFS-root with two bonded interfaces. I managed to successfully set up the NFS-root with one network interface using a NFS-root enabled initrd ...
10
votes
2answers
467 views

VMware Distributed vSwitches (VDS) - Design, theory, *real* use cases and examples?

I'm starting to explore VMware Distributed Switches (dvSwitches or VDS) for use in existing and new installations. Assume VMware version 5.1 and newer with Enterprise Plus licensing. Prior to this, ...
0
votes
1answer
364 views

Fortigate + HP ProCurve Load Balancing

I have a FortiGate 100D + HP ProCurve 2824 linked together by 4x 1Gb links. The ProCurve is configured to have ports 21-24 trunked together and load balance them. The 4 cables from these ports are ...
0
votes
0answers
158 views

How to configure multiple VLAN's on a lacp link aggregation on openindiana(oi_151a7)?

i have 4 links aggregated. $ dladm show-link LINK CLASS MTU STATE BRIDGE OVER igb0 phys 1500 up -- -- igb1 phys 1500 up -- ...
1
vote
0answers
307 views

HP E3800 switch to switch LACP connection dropping

I have a problem with 2 sets of stacked (2 switches in each stack) HP E3800 48 port switches. One set of stacked switches per rack for a total of 4 switches. I have a 4 port static LACP connection ...
3
votes
2answers
1k 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
5answers
2k views

Does a single LACP channel over multiple switches increase redundancy?

I am curious for opinions, findings, or evidence that having multiple interfaces bonded using LACP to ports in multiple switches can increase redundancy. Previously bonded interfaces have always been ...
3
votes
1answer
616 views

LACP Throughput Issues

I have been struggling with an LACP implementation for a while now, and the number of variables has really been getting overwhelming. Right now the setup I have is two hosts running 2008R2, each of ...
3
votes
2answers
958 views

Increase data transfer speed through bonding/lacp?

I want to maximize the throughput of a data transfer between two servers. The copy will be made at the application layer using Robocopy. To clear things up, please check my Visio schema of the ...
0
votes
3answers
4k views

Linux bonding: 802.3ad (LACP) vs. balance-alb mode

Here's the situation. I would like to connect my Linux servers to a single network using dual link for fault tolerance and load balancing reasons. The servers have 2 or more 1-gig NICs and I plan to ...
2
votes
1answer
355 views

LACP Total Speed

If we were to connect two switches together using LACP (with 2 X 1Gbe ports on each side), does this mean that the max speed that a single MAC address will ever reach is 1Gb? So for example, if a ...
5
votes
2answers
2k views

Does linux balance-rr (bond mode=0) work with all switches?

I'm configuring two ethernet interfaces into an aggregation group to double bandwidth, and I was wondering if bond mode=0 works for all switches? What about dumb switches that don't support LACP? Will ...
5
votes
3answers
2k views

How do I test the increased bandwidth after setting up LACP?

I have setup LACP, and LAG on our Netgear Switches (GS724T). I have bound(?) two ports together to create one 2Gbps connection between two of the switches. I was wondering if there is a way of ...
0
votes
1answer
589 views

Link Aggregation between DELL PC2724 and Cisco Catalyst 3750

I'm trying to configure Link Aggregation between my two switches, on the DELL switch, there is only an option to include a port in a "LAG Group." On the Cisco's I've tried creating an EtherChannel ...
1
vote
1answer
241 views

Do Both Ends Need LACP Configured for LACP to work?

We are trying to use link aggregation for some our experiments. So, we want to ask - If we have created link aggregation group with several ports on our switch do we have to create link aggreagation ...
3
votes
3answers
2k views

NIC teaming and EtherChannel

Cisco Catalyst 2960S Switch Intel Dual Port NIC (teamed) BroadComm Quad Port NIC (teamed 2 ports) We hired a contractor to setup a fairly simple SQL cluster and SAN storage. With the above switch ...
1
vote
1answer
772 views

Etherchannel between Cisco Catalyst 3548 and Linux box

We have a Cisco 3548XL switch. Fa0/1 and Fa0/2 are configured with the: port group 1 option. This gives me this: switch#show etherchannel summary Flags: d - default D - ...
0
votes
1answer
2k views

How would I create multiple VLAN interfaces on a 802.1Q and LACP trunked network connection on Solaris?

I've got a Solaris (Nexenta) NAS box that I'm trying to create multiple VLAN subinterfaces for. Currently, I've got an LACP aggregated link set up on the 10.13.111.0/26 network to my switch (Cisco ...
0
votes
1answer
470 views

Under FreeBSD, can a VLAN interface have a smaller MTU than the primary interface?

I have a system with two physical interfaces, combined into a LACP aggregation group. That LACP channel has two VLANs, one untagged (the "native vlan") and one using VLAN tagging. This gives us: ...
0
votes
1answer
354 views

Cisco LACP MEC on 7200 chassis

I'm currently trying to make some kind of setup like this: 2 Routers 7206VXR / NPE-G1 connected both at Gigabit speed to 2 devices (named D2). There is already a redundancy mechanism on both D2 to ...
1
vote
0answers
955 views

Load-balancing between a Procurve switch and a server

I've been searching around the web for this problem i've been having. It's similar in a way to this question: How exactly & specifically does layer 3 LACP destination address hashing work? My ...
39
votes
5answers
10k 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 ...