Step Description Command Keys
22 Set MRU (Maximum Receive Unit) size
for the interface (optionally)
esr(config-e1)# ppp mru <MRU> <MRU> – MRU value
23 Enable MLPPP mode (optionally) esr(config-e1)# ppp multilink
24 Add the group to MLPPP (optionally) esr(config-e1)# ppp multilink-
group <GROUP-ID>
<GROUP-ID> – group number
25 Specify the time interval in seconds
after which the router sends a keepalive
message (optionally)
esr(config-e1)# ppp timeout
keepalive <TIME>
<TIME> – time in seconds
26 Specify the interval after which the
router sends a keepalive message
(optionally)
esr(config-e1)# ppp timeout retry
<TIME>
<TIME> – time in seconds
8.7.2 Configuration example
Objective:
Configure PPP connection to the opposite side with IP address 10.77.0.1/24 via ToPGARE-SFP using 1-8
channel slots for data transmission; the clock source is the opposite side.
Solution:
Switch gigabitethernet 1/0/3 interface on which ToPGATE-SFP is set into E1 operation mode:
esr# configure
esr(config)# interface gigabitethernet 1/0/3
esr(config-if-gi)# description "*** ToPGATE ***"
esr(config-if-gi)# switchport mode e1
esr(config-if-gi)# switchport e1 timeslots 1-8
esr(config-if-gi)# switchport e1 clock source line
esr(config-if-gi)# switchport e1 slot 3
esr(config-if-gi)# exit
Enable interface e1 1/3/1:
esr(config)# interface e1 1/3/1
esr(config-e1)# security-zone trusted
esr(config-e1)# ip address 10.77.0.1/24
esr(config-e1)# exit
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