HP Integrity rx2800 HP Integrity Network Adapter Teaming Whitepaper - Page 15

Teaming Fundamentals for the First-Time User

Get HP Integrity rx2800 - i2 PDF manuals and user guides View all HP Integrity rx2800 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 15 highlights

3 Teaming Fundamentals for the First-Time User A Technical Overview of HP Integrity Network Adapter Teaming HP Integrity Network Adapter Teaming provides fault tolerance and load balancing across a team of two or more network adapter ports. The term "team" refers to the concept of multiple network adapters (teamed ports) working together as a single network adapter, commonly referred to as a virtual network adapter or virtual NIC interface. Figure 3-1 HP Integrity Network Adapter Teaming Goal: "To provide Servers with Layer 2 fault tolerance and load balancing capabilities by creating a Virtual NIC (consisting of multiple physical NIC ports) that is transparent to the server protocol stack and network clients" With Teaming Without Teaming HP Network Adapter Teaming "Virtual NIC Interface" NIC 1 NIC 2 NIC 3 1.1.1.1 NIC 4 Server NIC 1 1.1.1.1 NIC 2 1.1.1.2 NIC 3 1.1.1.3 NIC 4 1.1.1.4 Server Fault Tolerance: Dual Homing or Network Adapter Teaming? When considering network redundancy for a server, there are two commonly used solutions: dual homing or Network Adapter Teaming (sometimes referred to as bonding). Dual Homing a server involves installing two or more network adapters (NICs) in the server, assigning an individual IP address to each adapter and connecting the adapters to the network (refer to Figure 3-2). Dual Homing does provide path redundancy for the server to the network. However, Dual Homing does not completely solve the network redundancy problem for a server. The biggest issue is that Dual Homing does not provide IP address redundancy. For example, if the Multi-homed server in Figure 3-1 loses network connectivity on NIC 1, any clients that were connected to the server using IP address 1.1.1.1 will lose connectivity. For the clients to reconnect to the server, they would have to discover the alternate IP address somehow and then reinitiate connectivity. While Dual Homing provides semi-transparent redundancy for the server's outbound connectivity, it does not provide transparent redundancy for clients connecting to the server. A Technical Overview of HP Integrity Network Adapter Teaming 15

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
3 Teaming Fundamentals for the First-Time User
A Technical Overview of HP Integrity Network Adapter Teaming
HP Integrity Network Adapter Teaming provides fault tolerance and load balancing across a
team of two or more network adapter ports. The term “team” refers to the concept of multiple
network adapters (teamed ports) working together as a single network adapter, commonly
referred to as a virtual network adapter or virtual NIC interface.
Figure 3-1 HP Integrity Network Adapter Teaming
HP
Network
Adapter
Teaming
1.1.1.1
“Virtual
NIC
Interface”
Server
With Teaming
NIC 1
NIC 2
NIC 3
NIC 4
Without Teaming
NIC 1
1.1.1.1
NIC 2
1.1.1.2
NIC 3
1.1.1.3
NIC 4
1.1.1.4
Server
Goal:
“To provide
Servers with
Layer 2 fault
tolerance and
load balancing
capabilities by
creating a
Virtual NIC
(consisting of
multiple
physical NIC
ports) that is
transparent to
the server
protocol stack
and network
clients”
Fault Tolerance: Dual Homing or Network Adapter Teaming?
When considering network redundancy for a server, there are two commonly used solutions:
dual homing or Network Adapter Teaming (sometimes referred to as bonding).
Dual Homing a server involves installing two or more network adapters (NICs) in the server,
assigning an individual IP address to each adapter and connecting the adapters to the network
(refer to
Figure 3-2
). Dual Homing does provide path redundancy for the server to the network.
However, Dual Homing does not completely solve the network redundancy problem for a server.
The biggest issue is that Dual Homing does not provide IP address redundancy. For example,
if the Multi-homed server in
Figure 3-1
loses network connectivity on NIC 1, any clients that
were connected to the server using IP address 1.1.1.1 will lose connectivity. For the clients to
reconnect to the server, they would have to discover the alternate IP address somehow and then
reinitiate connectivity. While Dual Homing provides semi-transparent redundancy for the server’s
outbound connectivity, it does not provide transparent redundancy for clients connecting to the
server.
A Technical Overview of HP Integrity Network Adapter Teaming
15