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use of BPCD port on client

Created: 06 Feb 2012 • Updated: 06 Feb 2012 | 9 comments
This issue has been solved. See solution.

HI,

What is the use of BPCD port on client?

is it bidirectional?

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walker.yang's picture

it's a client deamon, which is always with listening status and used to listen on the requests from Master or Media, lets NBU start some programs.

Marianne's picture

Before NBU 6.5, server -> client comms was made to bpcd directly. The client then needed to connect back on a range of ports. (512 -1023).

Since 6.0, all comms between server and client are directed via vnetd, needing only vnetd open in both directions. So, media server bpbrm -> client bpcd connection is directed via vnetd. Client then connects back using vnetd port as well.

Since 7.0.1, connection attempts will prefer PBX. Failing that, will fail back to vnetd.

Please see the NBU functional overview in Appendix A of NBU Troubleshooting Guide  http://www.symantec.com/docs/DOC3683

as well as NetBackup 6.x and 7.x firewall port requirements  http://www.symantec.com/docs/TECH136090

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

NIKHIL2346565959's picture

so vnetd needs t be pen in both direction?dats it?

NIKHIL2346565959's picture

So in 7.1,only PBX needs to be open bidirectionally anr rest in unidirectionaly?

Marianne's picture

For now vnetd will be enough for server/client comms.

Please add PBX (1556) to firewall ports (both directions) as vnetd will eventually be phased out.

Extract from TECH136090:

The vnetd process is still listening on TCP port 13724.  But most connections that previously used the vnetd port will now prefer to use the PBX port 1556.  ....

 

Not sure what you mean by 'rest'?

These are the only 2 ports needed for comms in 7.x - both bi-directional:

Server <- vnetd -> Client

As from 7.0.1:
Server <- PBX / vnetd -> Client

Server <- PBX -> Server

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

NIKHIL2346565959's picture

 

As from 7.0.1:
Server <- PBX / vnetd -> Client

Server <- PBX -> Server

 

What this means?

 

Rest means other daemons

Marianne's picture

The arrow means the direction in which the port needs to be open.

So, vnetd need to be open to server and to client (bi-directional).

Same for PBX.

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

SOLUTION
NIKHIL2346565959's picture

so in short,

PBX AND VNETD needs to be open bidirectionally in 7.x?

AND vnetd bidirectionally in 6.x?

Marianne's picture

Correct.

 

Detailed explanation in TECH136090.

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links