M5 and M10 Internet Backbone Routers
H a r d w a r e
J U N O S R e l e a s e 4 . 3
M 5 a n d M 1 0 R o u t e r s M a j o r H a r d w a r e C o m p o n e n t s
Offline
Component
Quantity
Function
Redundant
Field-replaceable
Button
Forwarding Engine
1
Connects PICs to router components,
–
Requires router
–
Board (FEB)
houses shared memory
shutdown
Physical Interface Cards
1–4
M5 router
Provides interfaces to various network media
–
Hot-removable
Yes
(PICs)
1–8
M10 router
Hot-insertable
Routing Engine
1
Handles routing protocols, maintains
–
Requires router
–
routing tables
shutdown
Power supplies
2 AC or
Distributes voltages to components
Yes
Hot-removable
–
2 DC
Hot-insertable
Cooling system
1 fan tray
Cools router components
Yes
Hot-removable
–
(3 fans)
Hot-insertable
Craft interface
1
Displays status and allows you to take
–
–
–
PICs offline
Hot-removable and hot-insertable
—Can remove and replace without powering down the router or disrupting routing functions.
Hot-pluggable
—Can remove without powering down the router, but the routing and forwarding functions are interrupted until the replacement
component is installed.
M 5 a n d M 1 0 R o u t e r s P h y s i c a l S p e c i f i c a t i o n s
Dimensions
5.25 in. (13.3 cm) high x 17.4 in. (44.2 cm) wide x 24 in. (61 cm) deep
Weight
57 lb (25.8 kg) minimum configuration
61 lb (27.6 kg) maximum configuration,
M5 router
65 lb (29.5 kg) maximum configuration,
M10 router
Required clearances
24 in. (61 cm) front and rear; 6 in. (15.2 cm) each side
Front View
Rear View
1300
Craft interface
ESD
point
PICs
1302
Power
supplies
Routing Engine
cover
Fan tray
ESD
point
Forwarding
Engine
Board
