05-12-2009
As far as i know you cannot do failover with link aggregation as linkaggregation wants you to have both the interfaces on the same switch and that defies the impm configuration basic which wants you to have the interfaces on 2 different switches .. that what i know correct me if wrong.
10 More Discussions You Might Find Interesting
1. Solaris
Hi there
I have a requirement to provide failover to our customer boxes in case of interface / switch failure, I have been looking at Solaris Link Aggregation with LACP and I wanted to ask a question
Ive seen multiple websites that say the following
Does this also mean that if the... (2 Replies)
Discussion started by: hcclnoodles
2 Replies
2. UNIX for Advanced & Expert Users
Hi there
I have a requirement to provide failover to our customer boxes in case of interface / switch failure, I have been looking at Solaris Link Aggregation with LACP and I wanted to ask a question
Ive seen multiple websites that say the following
Does this also mean that if the... (1 Reply)
Discussion started by: hcclnoodles
1 Replies
3. IP Networking
I have some linux machines that I am trying to increase the throughput to on a single connection. They connect to a switch with two 1GbE lines and the switch does not have Link Aggregation support for these machines. I have tried bonding with balance-rr, balance-alb, but the machines can only... (4 Replies)
Discussion started by: Eruditass
4 Replies
4. AIX
Hi,
I need to setup a hacmp cluster (my first one, we usually use VCS on AIX), but I require more network bandwith than a normal gigabit etherchannel setup can provide, so I am thinking about using linkaggregation - 2 active adapters to one switch and a single backup adapter to another switch... (4 Replies)
Discussion started by: zxmaus
4 Replies
5. HP-UX
Hi,
Hoping someone can offer some advice on something i have not dealt with before.
We have a server that seems to have some very strange configuration done on it. It has 2 physical NIC's and rather than both be aggregated into LAN900 we have 1 in LAN900 and 1 in LAN901? (See Below)... (2 Replies)
Discussion started by: Andyp2704
2 Replies
6. Solaris
Me again :)
I'm trying to find a page describing the L2, L3 und L4 modes of dladm.
It's nice to read "hashed by ip header", but how should I use that?
On the file-server it's ok to have the six interfaces serving six clients each on it's own. But an rsync connection via switch between two... (8 Replies)
Discussion started by: PatrickBaer
8 Replies
7. HP-UX
Hi,
I want to Break the Link Aggregation. My aggregation are lan0+lan1 = lan900.
Now I want to break this and put the IP in lan0. But i have cluster environment and this is the main database server.
So It need to change in cluster script.
But I dont know where I have to change it.
Please... (1 Reply)
Discussion started by: mkiron
1 Replies
8. Solaris
Hi,
I'm not from the Solaris world and some of these things are new to me. Can someone tell me if it is possible to configure link aggregation without using LACP?
I am told etherchannel was setup without LACP. (3 Replies)
Discussion started by: techy1
3 Replies
9. IP Networking
Hi
ihave three link of internet and iwant to put one linux front of a firewall that this three linux speard firewall such az load balance and fialover but dont close any port and protocol and only firewall have been internet what way can i use for it ?
are there any script and services do that... (0 Replies)
Discussion started by: mnnn
0 Replies
10. Solaris
Hi,
I have Solaris-10 server and link aggregation is configured on this in below way
# dladm show-aggr
key: 1 (0x0001) policy: L4 address: 3c:d9:2b:ee:a8:a (auto)
device address speed duplex link state
bnx1 3c:d9:2b:ee:a8:a... (8 Replies)
Discussion started by: solaris_1977
8 Replies
LEARN ABOUT OPENSOLARIS
if_mpadm
if_mpadm(1M) System Administration Commands if_mpadm(1M)
NAME
if_mpadm - administer interfaces in an IP multipathing group
SYNOPSIS
if_mpadm -d | -r ifname
DESCRIPTION
The if_mpadm utility administers IP interfaces that are part of an IP Multipathing (IPMP) group. Currently, administration is limited to
offlining IP interfaces and undoing previous offline operations.
When an IP interface is taken offline, all IP data traffic that was flowing over the IP interface is moved to another IP interface in the
IPMP group. In addition, all UP IP addresses hosted on the IP interface are brought down, causing in.mpathd(1M) to stop probe-based failure
detection on the IP interface. As a result, an offline IP interface will not be used for any inbound or outbound IP traffic. Only IP inter-
faces that are in an IPMP group may be brought offline. If the IP interface is the last functioning interface in the IPMP group, the off-
line operation will fail.
When an offline operation is undone, any IP addresses hosted on that IP interface are brought UP and will be considered by in.mpathd for
probe-based failure detection. In addition, provided the IP interface is otherwise active (see in.mpathd(1M)), it will again be used to
send and receive IP data traffic for the IPMP group. Note that not all offline operations can be undone. For instance, in.mpathd may have
offlined an IP interface because its hardware address was not unique within its IPMP group. The ipmpstat utility can be used to determine
why an IP interface is offline, identify which IP interfaces in a group are being used for inbound and outbound IP traffic, and more; see
ipmpstat(1M).
OPTIONS
The if_mpadm utility supports the following options:
-d ifname Offline the IP interface specified by ifname. If ifname is not in an IPMP group, or the offline would cause the IPMP group to
lose network connectivity, the operation will fail.
-r ifname Undo a previous offline of the IP interface specified by ifname. If ifname is not offline, the operation will fail.
EXAMPLES
Example 1 Offlining an IP Interface
The following command offlines the IP interface under0, causing any IP packets that were being sent and received through it to be handled
by another IP interface in its group.
example% if_mpadm -d under0
Example 2 Undoing a Previous Offline Operation
Use the following command to undo the operation in the previous example:
example% if_mpdadm -r under0
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|Interface Stability |Unstable |
+-----------------------------+-----------------------------+
SEE ALSO
ifconfig(1M), in.mpathd(1M), ipmpstat(1M), attributes(5)
DIAGNOSTICS
cannot offline: no other functioning interfaces are in its IPMP group.
Description:
This message means that offlining the IP interface would leave the IPMP group without network connectivity.
cannot offline: not a physical interface or not in an IPMP group
Description:
This means that the IP interface is not an underlying interface in an IPMP group, and therefore is not eligible to be offlined.
SunOS 5.11 5 Jan 2009 if_mpadm(1M)