Talk:Network Environment

From BCCD 3.0

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(Stage descriptions)
(Stage descriptions)
Line 4: Line 4:
# Live mode
# Live mode
-
## Initial boot: Obtain IP address from any available DHCP server
+
## Initial boot:
 +
### Try to obtain an IP address from a BCCD DHCP server
 +
### If no BCCD DHCP servers are available, obtain an IP address from any DHCP server
## Head node: Upon user request, start DHCP server that will answer requests '''only''' from other BCCD systems
## Head node: Upon user request, start DHCP server that will answer requests '''only''' from other BCCD systems
# Liberated mode
# Liberated mode
-
## Initial boot: Obtain IP address from any available DHCP server
+
## Initial boot:
 +
### Try to obtain an IP address from a BCCD DHCP server
 +
### If no BCCD DHCP servers are available, obtain an IP address from any DHCP server
## Diskless boot: Upon user request, start DHCP server that will answer requests from diskless BCCD systems on '''only''' a given interface
## Diskless boot: Upon user request, start DHCP server that will answer requests from diskless BCCD systems on '''only''' a given interface

Revision as of 23:30, 11 May 2019

Stage descriptions

BCCD goes through the following network configuration stages:

  1. Live mode
    1. Initial boot:
      1. Try to obtain an IP address from a BCCD DHCP server
      2. If no BCCD DHCP servers are available, obtain an IP address from any DHCP server
    2. Head node: Upon user request, start DHCP server that will answer requests only from other BCCD systems
  2. Liberated mode
    1. Initial boot:
      1. Try to obtain an IP address from a BCCD DHCP server
      2. If no BCCD DHCP servers are available, obtain an IP address from any DHCP server
    2. Diskless boot: Upon user request, start DHCP server that will answer requests from diskless BCCD systems on only a given interface

Troubleshooting

RTNETLINK answers: File exists

If you get an error like this:

RTNETLINK answers: File exists
Failed to bring up eth1.

Try flushing that interface and replumbing it:

$ sudo ip addr flush dev eth1
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