Fabric ports – H3C Technologies H3C S3600 Series Switches User Manual
Page 792
1-3
Figure 1-3 Port connection mode for S3600 series ring topology IRF fabric Port connection mode for
S3600 series ring topology IRF fabric is shown in
.
Mode
Green=Speed
Yellow=Duplex
RPS
PWR
Console
Unit
1000Base-X
1
Speed:Green=100Mbps
,Yellow=10Mbps
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
Duplx:Green=Full Duplx
,Yellow=Half Duplx
H3C S3600
Series
10/100Base-TX
Mode
Green=Speed
Yellow=Duplex
RPS
PWR
Console
Unit
1000Base-X
1
Speed:Green=100Mbps
,Yellow=10Mbps
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
Duplx:Green=Full Duplx
,Yellow=Half Duplx
H3C S3600
Series
10/100Base-TX
Mode
Green=Speed
Yellow=Duplex
RPS
PWR
Console
Unit
1000Base-X
1
Speed:Green=100Mbps
,Yellow=10Mbps
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
Duplx:Green=Full Duplx
,Yellow=Half Duplx
H3C S3600
Series
10/100Base-TX
IRF fabric also supports bus topology, which has the same requirements as the ring topology. The
difference is that in a bus topology structure, the units at both ends of the bus have only one fabric port
connected, as shown in
.
Figure 1-4 IRF fabric bus topology
A ring topology is more reliable than a daisy chain topology. The failure of one link in a ring connection
does not affect the function and performance of the XRN, whereas the failure of one link in a daisy chain
connection causes the split of the XRN.
Fabric ports
On an S3600 series Ethernet switch, only four GigabitEthernet ports can be configured as fabric ports.
If not used for fabric connection, these four ports can be used as general data ports. The four ports fall
into two groups according to their port numbers:
z
GigabitEthernet 1/1/1 and GigabitEthernet 1/1/2 form the first group.
z
GigabitEthernet 1/1/3 and GigabitEthernet 1/1/4 form the second group.
Only one group of ports can be configured as fabric ports at a time. Given a group, either
GigabitEthernet 1/1/1 or GigabitEthernet 1/1/3 can be configured as the left fabric port, and either
GigabitEthernet 1/1/2 or GigabitEthernet 1/1/4 can be configured as the right fabric port.
Once you configure a port as a fabric port, the group that comprises this fabric port becomes the fabric
port group, and you cannot configure a port in the other group as a fabric port. For example, once you
configure GigabitEthernet 1/1/1 as a fabric port, this port automatically becomes the left port and the
first group becomes the fabric port group.