H3c-technologies H3C MSR 5600 Manual de usuario Pagina 114

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Figure 39 Network diagram
Device Interface IP address
Device
Interface IP address
CE 1 S2/0 10.1.1.1/24 PE 1 S2/0 10.1.1.2/24
CE 2
CE 3
S2/0
S2/0
10.2.1.1/24
10.3.1.1/24
S2/1
S2/2
172.1.1.1/24
10.2.1.2/24
CE 4 S2/0 10.4.1.1/24
PE 2
S2/0
10.3.1.2/24
P S2/0 172.1.1.2/24
S2/1
172.2.1.2/24
S2/1 172.2.1.1/24 S2/2 10.4.1.2/24
Configuration procedure
1. Set the IP address for each interface as shown in Figure 39. (Details not shown.)
2. Configure CE 1:
# Enable the NTP service.
<CE1> system-view
[CE1] ntp-service enable
# Specify the local clock as the reference source, with the stratum level 2.
[CE1] ntp-service refclock-master 2
3. Configure PE 1:
# Enable the NTP service.
<PE1> system-view
[PE1] ntp-service enable
# Specify CE 1 in VPN 1 as the symmetric-passive peer of PE 1.
[PE1] ntp-service unicast-peer 10.1.1.1 vpn-instance vpn1
4. Verify the configuration:
# Display the IPv4 NTP association information and status on PE 1 a certain period of time later.
[PE1] display ntp-service status
Clock status: synchronized
Clock stratum: 3
System peer: 10.1.1.1
Local mode: sym_active
CE 1
Symmetric passive peer
CE 2 CE 4
CE 3
PE 1
Symmetric
active peer
PE 2
P
VPN 1
VPN 2
VPN 1
VPN 2
S2/0
S2/0
S2/2
S2/0
S2/1 S2/1
S2/0 S2/0
S2/0
S2/0
S2/2
S2/1
MPLS backbone
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