Goddard SFC
If anyone at Goddard Space Flight Center (gsfc.nava.gov) is on the list, can you please contact me off-list about an e-mail blocking issue? -- Jason McCormick [EMAIL PROTECTED] GPG Fingerprint: 66C5 2B15 3E34 2B5E 5321 6147 303A DCE6 0A74 A19C
GigE High-Availability + Link Aggregation
Hello all, I'm trying to price and buy a network setup for a high-availability GigE situation that requires link aggregation. In a simplistic example, my need is to have, Host A with 2 GigE NICs (copper) that are link aggregated with 802.3ad but each side is run to a different switch with a host Host B on the other side configured in the same manner. For example: ++ /--| GigE Switch 1 |--\ | ++ | / \ NIC1-/ \-NIC1 HOST A -= =- Host B NIC2-\ /-NIC2 \ / | ++ | \--| GigE Switch 2 |--/ ++ In this example, Host A would have an IP of 10.0.0.1 that would be aggregated on both NIC1 and NIC2 to provide 2Gbps through put and Host B would have 10.0.0.2 with link aggregation. The theory to this being that I can kill two birds with one stone and provide 2Gbps throughput while having the high-availability. If Switch1 dies, throughput drops to 1Gbps but the endpoints are still available and vise-versa. If I'm understanding 802.3ad properly, the aggregates have to be on the same switch or at least in the same stack and can't be passed along on-wire in the same way that other tagged protocols can (such as VLAN tags). Maybe I'm wrong on this? As usual, cost is a MAJOR constraint (when isn't it?!?) and I'm looking for the cheapest possible solution. Can anyone recommend a product/products that would accomplish this for me? I'm trying to keep the price $6000 if possible. If you feel this is off-topic, please feel free to reply to me personally. Thanks a lot in advance! -- Jason McCormick [EMAIL PROTECTED] GPG Key ID: 96D6CF63
Re: GigE High-Availability + Link Aggregation
On Tuesday 16 March 2004 10:08 pm, you wrote:
I'm trying to price and buy a network setup for a high-availability
GigE situation that requires link aggregation.
{SNIP}
Thanks for the reponse to far. To clarify several things based on the
feedback... For the implementation Host A side is going to be N
number of servers that are pointing at a NAS filer device that is on
the Host B side of my example so the interconnection needs to be
switches and can't be direct-connects. Also, the targeted quantifiable
throughput will need to be 1Gbps so I need always-on link
aggregation.
Thanks for the responses so far!
--
Jason McCormick
[EMAIL PROTECTED]
GPG Key ID: 96D6CF63
Re: SMTP authentication for broadband providers
Is anyone aware of any well known mail clients that do not support SMTP authentication (Unix, Windows or Mac)? I'm not an ISP, but I know some users here who have wireless Internet on their mobile phones have complained in the past they can't send e-mail if you have SMTP AUTH only (as opposed to POP before SMTP). Not sure if it'd be an issue for you, but it's something I ran into. My basic response was tough :) -- Jason McCormick [EMAIL PROTECTED] GPG Key: http://www.devrandom.org/gpgkey.php GPG Fingerprint: 66C5 2B15 3E34 2B5E 5321 6147 303A DCE6 0A74 A19C
