NOTE:

1. The first 48 ports are grouped as shown in the following table, four ports form a group.

Group	Ports
1	Port1, Port2, Port3, Port6
2	Port4, Port5, Port7, Port9
3	Port8, Port10, Port11, Port12
4	Port13, Port14, Port15, Port18
5	Port16, Port17, Port19, Port21
6	Port20, Port22, Port23, Port24
7	Port25, Port26, Port27, Port30
8	Port28, Port29, Port31, Port33
9	Port32, Port34, Port35, Port36
10	Port37, Port38, Port39, Port42
11	Port40, Port41, Port43, Port45
12	Port44, Port46, Port47, Port48

2. For the first 48 ports, the transmission rates of optical modules inserted in the ports of a group needs to be the same, and the configured port speed must be the same too, that is to say,

when inserting an optical module to the switch port, the transmission rates of the optical modules should be the same in a group.
you should manually configure the port speed by using the set interface gigabit-ethernet speed command before inserting an optical module, and the port speed of the four ports in the same group should be configured together and with the same value.

3. The last two ports are 10G-Base-KR ports which can be configured as two 10G SFP+ ports on the front panel or two 10G-KR ports linked to CPU. By default, 10G-Base-KR ports are disabled. For details please refer to document 10G-Base-KR Interface Configuration.

4. On N8550-48B8C switch, when the 10G-Base-KR ports are enabled as either front panel ports or management ports, xe-1/1/8 port is not allowed to be split into four Gigabit Ethernet interfaces.

Mapping between physical ports, interface names and interface support speed are in the following table.

Physical Port Number	Interface Names	Interface Support Speed
1	te-1/1/1	25Gb/s,10Gb/s,1Gb/s
2	te-1/1/2	25Gb/s,10Gb/s,1Gb/s
3	te-1/1/3	25Gb/s,10Gb/s,1Gb/s
4	te-1/1/4	25Gb/s,10Gb/s,1Gb/s
5	te-1/1/5	25Gb/s,10Gb/s,1Gb/s
6	te-1/1/6	25Gb/s,10Gb/s,1Gb/s
7	te-1/1/7	25Gb/s,10Gb/s,1Gb/s
8	te-1/1/8	25Gb/s,10Gb/s,1Gb/s
9	te-1/1/9	25Gb/s,10Gb/s,1Gb/s
10	te-1/1/10	25Gb/s,10Gb/s,1Gb/s
11	te-1/1/11	25Gb/s,10Gb/s,1Gb/s
12	te-1/1/12	25Gb/s,10Gb/s,1Gb/s
13	te-1/1/13	25Gb/s,10Gb/s,1Gb/s
14	te-1/1/14	25Gb/s,10Gb/s,1Gb/s
15	te-1/1/15	25Gb/s,10Gb/s,1Gb/s
16	te-1/1/16	25Gb/s,10Gb/s,1Gb/s
17	te-1/1/17	25Gb/s,10Gb/s,1Gb/s
18	te-1/1/18	25Gb/s,10Gb/s,1Gb/s
19	te-1/1/19	25Gb/s,10Gb/s,1Gb/s
20	te-1/1/20	25Gb/s,10Gb/s,1Gb/s
21	te-1/1/21	25Gb/s,10Gb/s,1Gb/s
22	te-1/1/22	25Gb/s,10Gb/s,1Gb/s
23	te-1/1/23	25Gb/s,10Gb/s,1Gb/s
24	te-1/1/24	25Gb/s,10Gb/s,1Gb/s
25	te-1/1/25	25Gb/s,10Gb/s,1Gb/s
26	te-1/1/26	25Gb/s,10Gb/s,1Gb/s
27	te-1/1/27	25Gb/s,10Gb/s,1Gb/s
28	te-1/1/28	25Gb/s,10Gb/s,1Gb/s
29	te-1/1/29	25Gb/s,10Gb/s,1Gb/s
30	te-1/1/30	25Gb/s,10Gb/s,1Gb/s
31	te-1/1/31	25Gb/s,10Gb/s,1Gb/s
32	te-1/1/32	25Gb/s,10Gb/s,1Gb/s
33	te-1/1/33	25Gb/s,10Gb/s,1Gb/s
34	te-1/1/34	25Gb/s,10Gb/s,1Gb/s
35	te-1/1/35	25Gb/s,10Gb/s,1Gb/s
36	te-1/1/36	25Gb/s,10Gb/s,1Gb/s
37	te-1/1/37	25Gb/s,10Gb/s,1Gb/s
38	te-1/1/38	25Gb/s,10Gb/s,1Gb/s
39	te-1/1/39	25Gb/s,10Gb/s,1Gb/s
40	te-1/1/40	25Gb/s,10Gb/s,1Gb/s
41	te-1/1/41	25Gb/s,10Gb/s,1Gb/s
42	te-1/1/42	25Gb/s,10Gb/s,1Gb/s
43	te-1/1/43	25Gb/s,10Gb/s,1Gb/s
44	te-1/1/44	25Gb/s,10Gb/s,1Gb/s
45	te-1/1/45	25Gb/s,10Gb/s,1Gb/s
46	te-1/1/46	25Gb/s,10Gb/s,1Gb/s
47	te-1/1/47	25Gb/s,10Gb/s,1Gb/s
48	te-1/1/48	25Gb/s,10Gb/s,1Gb/s
49	xe-1/1/1	100Gb/s, 40Gb/s, 4x25Gb/s, 4x10Gb/s
50	xe-1/1/2	100Gb/s, 40Gb/s, 4x25Gb/s, 4x10Gb/s
51	xe-1/1/3	100Gb/s, 40Gb/s, 4x25Gb/s, 4x10Gb/s
52	xe-1/1/4	100Gb/s, 40Gb/s, 4x25Gb/s, 4x10Gb/s
53	xe-1/1/5	100Gb/s, 40Gb/s, 4x25Gb/s, 4x10Gb/s
54	xe-1/1/6	100Gb/s, 40Gb/s, 4x25Gb/s, 4x10Gb/s
55	xe-1/1/7	100Gb/s, 40Gb/s, 4x25Gb/s, 4x10Gb/s
56	xe-1/1/8	100Gb/s,40Gb/s, 4x25Gb/s, 4x10Gb/s
57	me-1/1/1(Management Port)	auto
57	te-1/1/49(Front Panel Port)	10Gb/s,1Gb/s
58	me-1/1/2(Management Port)	auto
58	te-1/1/50(Front Panel Port)	10Gb/s,1Gb/s

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