| Title: | NAS Message Queuing Bus |
| Notice: | KITS/DOC, see 4.*; Entering QARs, see 9.1; Register in 10 |
| Moderator: | PAMSRC::MARCUS EN |
| Created: | Wed Feb 27 1991 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 2898 |
| Total number of notes: | 12363 |
I want to know whether I can create fail safe network configuration using
DECmessageQ over TCP/IP.
Can DMQ switch from a line-a to a line-b without any operation, when
a line-a goes down ?
Can DMQ use both lines simultaneously ?
Can DMQ swith TCP/IP to DECnet ?
+---------------------+ +---------------------+
| OpenVMS 6.2 | | OpenVMS 6.2 |
| UCX 4.0 | | UCX 4.0 |
| DMQ 3.2 | | DMQ 3.2 |
| | | |
| 1a 1b | | 2b 2a |
| +------+ +------+ | | +-----+ +------+ |
| |ether | |ether | | | |ether| |ether | |
+-+------+---+------+-+ +-+-----+----+------+-+
| | line b | |
| []====================================[] |
| line a |
[]================================================================[]
DMQ$INIT.TXT
GroupID System ..... Transport Addr
------- ------- --------- ------
1 1a TCPIP xxx1
1 1b TCPIP xxx1
2 2a TCPIP xxx1
2 2b TCPIP xxx1
Regards,
Yukio Moriguchi
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 2881.1 | PAMSIC::STEPHENS | Fri May 16 1997 13:25 | 26 | ||
Hello, >Can DMQ switch from a line-a to a line-b without any operation, when >a line-a goes down ? No, the product does not support dual-homed IP configurations such as you described in .0 >Can DMQ use both lines simultaneously ? No, except, if these systems are on the same LAN, and if your application is so inclined, then you can use the SBS server which is setup to broadcast on dual rail configurations (using direct multicasting, not TCP/IP) >Can DMQ swith TCP/IP to DECnet ? Yes, the transport control can switch between link drivers (DECnet and TCP/IP), however this would be a major managment headache, if you were suggesting to run DECnet over one rail and IP on the other. Hope this helps, Bruce Bruce | |||||
| 2881.2 | This may help... | KLOVIA::MICHELSEN | BEA/DEC MessageQ Engineering | Sun May 18 1997 23:35 | 14 |
re: .0
>Can DMQ switch from a line-a to a line-b without any operation, when
>a line-a goes down ?
>Can DMQ use both lines simultaneously ?
>Can DMQ swith TCP/IP to DECnet ?
BTW, DECnet supports dual-rail ethernet transparently, all you have to
do is make sure it's enabled.
Marty
| |||||
| 2881.3 | Really? | TKOV60::MORIG | Mon May 19 1997 09:00 | 13 | |
BEA/DEC messageQ on Digital UNIX can swith the dual rails Ethernet. DECnet-Plus can use dual rails transparently and with fail-safe. Only on OpenVMS with UCX CAN't handle it? If we use DECnet-Plus on TCP/IP, though it is the UCX, can we use dual rails on TCP/IP with the messageQ? We need dual rails support on TCP/IP, DMQ with MRS. Regards, Yukio | |||||
| 2881.4 | KLOVIA::MICHELSEN | BEA/DEC MessageQ Engineering | Fri May 23 1997 15:01 | 6 | |
re: .3 I am not familar with those capabilities of DECnet-Plus. Marty | |||||