IT Certification

Inbound
1. QoS Policy Propagation through Border Gateway Protocol (BGP) (QPPB)
2. Input common classification
3. Input ACLs
4. Input marking (class-based marking or Committed Access Rate (CAR))
5. Input policing (through a class-based policer or CAR)
6. IP Security (IPSec)
7. Cisco Express Forwarding (CEF) or Fast Switching

Outbound
1. CEF or Fast Switching
2. Output common classification
3. Output ACLs
4. Output marking
5. Output policing [...]

The first method:

Cisco(config)#
Cisco(config)#
Cisco(config)#access-list 100 permit tcp host 192.168.1.100 host 172.16.2.200
Cisco(config)#
Cisco(config)#interface ethernet 0/1
Cisco(config-if)#rate-limit output access-group 110 8000 1500 3000 conform-action transmit
exceed-action drop
Cisco(config-if)#
Cisco(config-if)#
Cisco(config-if)#
Empirical formula:
BC=CIR/8*1.5
BE=2*BC

The second method (CBWFQ):
Cisco(config)#
Cisco(config)#access-list 100 permit tcp host 192.168.1.100 host 172.16.2.200
Cisco(config)#
Cisco(config)#class-map Download
Cisco(config-cmap)#match access-group 100
Cisco(config-cmap)#
Cisco(config)#
Cisco(config)#policy-map CBWFQ
Cisco(config-pmap)#class Download
Cisco(config-pmap-c)#bandwidth 8000
Cisco(config)#
Cisco(config)#int e0/1
Cisco(config-if)#service-policy output CBWFQ
Cisco(config）#

Q: At around on my network has more than 100 phone software stack through a 3750 switch connected to a VLAN on, and then connect to a 6509 switch on (release layer), and then through a 7206 router (core layer) connected to the WAN on. Aspect VoIP gateway using a receive calls through SIP.
My question [...]