Ethernet Frame Counts And Statistics On Mx Series Routers; Mx2020 Router Hardware Components And Cli Terminology - Juniper MX2020 Hardware Manual

MX Series Router Packet Forwarding Engine (PFE) Architecture | 21

Ethernet Frame Counts and Statistics on MX Series Routers | 26

Ethernet Frame Counts and Statistics on MX Series Routers
The following considerations apply to Ethernet frame counts and statistics on Juniper Networks MX Series
5G Universal Routing Platforms:
Interface counters do not include the 7-byte Ethernet frame preamble and the frame delimiter byte.
In Media Access Control (MAC) statistics. the frame size includes the MAC header and cyclical redundancy
check (CRC) before any VLAN rewrite or other rules are applied.
In traffic statistics, the frame size includes the Layer 2 header without the trailer CRC and after any VLAN
rewrite or other rules are applied.
RELATED DOCUMENTATION
Layer 2 and Layer 3 Features on MX Series Routers

MX2020 Router Hardware Components and CLI Terminology

The MX2020 router supports the components in
Table 8: MX2020 Router Hardware Components and CLI Terminology
Hardware Model
Component Number
Chassis CHAS-BP-MX2020
AC Optimized MX2020-PREMIUM2-AC
Power Chassis
Table 8 on page 26.
CLI Name Description
MX2020 "MX2020 Physical
Specifications" on
page 125
"MX2020 Chassis
Description" on page 6
26