Technical Documentation
EX8200-2XS-40T Line Card
The line cards in EX8200 switches combine a Packet Forwarding Engine and Ethernet interfaces on a single assembly. They are field-replaceable units (FRUs) that can be installed in the line card slots on the front of the switch chassis. The line cards are hot-insertable and hot-removable: You can remove and replace them without powering off the switch or disrupting switch functions.
The EX8200-2XS-40T (40-port RJ-45 with 4-port SFP and 2-port SFP+) line card offers maximum port density for the access layer and SFP and SFP+ uplink ports for connection to the distribution layer (see Figure 1).
Figure 1: EX8200-2XS-40T Line Card
This topic describes:
Line Card Models
Table 1 shows the model number, description of the line card model, the Junos OS release in which the model was released, the release in which support on EX8200 Virtual Chassis was introduced, and the release in which Virtual Chassis Port (VCP) support was introduced for ports on the line card.
Table 1: EX8200-2XS-40T Line Card Models
Model | Description | Junos OS Release Required | Support on EX8200 Virtual Chassis | EX8200 Virtual Chassis Port (VCP) Support |
|---|---|---|---|---|
EX8200-2XS-40T | 40-port RJ-45 with 4-port SFP and 2-port SFP+ line card | 11.2R1 or later | 11.4R1 | 11.4R1 Note: VCPs supported on SFP+ transceivers only |
Line Card Components
The EX8200-2XS-40T line card (see Figure 1) has:
- 40 oversubscribed RJ-45 ports
- 4 SFP uplink ports
- 2 SFP+ uplink ports
- Six dust covers (shipped in an accessory bag)
- Line card status LEDs—Two status LEDs labeled ON and ST that indicate the online and status for the line card. See Line Card LEDs in an EX8200 Switch.
- Network port LEDs—Two LEDs per network port that indicate the link/activity and status of each port. See Network Port LEDs in an EX8200 Switch.
Line Card Ports
Table 2 shows the port number, port type, and port throughput on an EX8200-2XS-40T line card.
Table 2: Ports on the EX8200-2XS-40T Line Card
Port Number | Port Type | Throughput | Additional Information |
|---|---|---|---|
0 through 39 | Oversubscribed, RJ-45 | 10/100/1000 Gigabit Ethernet | |
40 through 43 | SFP | Line rate | Can be used as an uplink of 1-Gigabit Ethernet fiber links in a link aggregation group (LAG). |
44 and 45 | SFP+ | Line rate | Can be used as an uplink of 10-Gigabit Ethernet fiber links in a link aggregation group (LAG). |
The ports are divided into two port groups:
- The RJ-45 ports 0–19 and SFP ports 40 and 41 form one port group.
- The RJ-45 ports 20–39 and SFP ports 42 and 43 form another port group.
The ports in each group share 10 gigabits of bandwidth. The SFP ports operate at 1 gigabit bandwidth. Thus, you can transmit up to 8 gigabits of traffic through a port group when the SFP ports are active and up to 10 gigabits when the SFP ports are not active, without packet drop. The oversubscription ratios of different port groups can differ from one another; the ratios depend on the amount of traffic being transmitted through a port group.
For more information about using these ports:
- To understand how traffic is handled by oversubscribed ports, see Understanding CoS Queues on EX8200 Line Cards That Include Oversubscribed Ports.
