Cisco Cisco 5508 Wireless Controller Libro blanco
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White Paper: Mobile Access Indoor Wireless Solution and Cisco WLANs
Additional Reference Material
three CAT-5e/6 cables involved. Cisco ran exhaustive tests with cable lengths well beyond 100 meters
to substantiate the 100 meter specification when any devices are connected to the VE system and any
medium- to good-quality CAT5e/6 cable is used.
to substantiate the 100 meter specification when any devices are connected to the VE system and any
medium- to good-quality CAT5e/6 cable is used.
There is no difference in Wi-Fi or Cellular performance whether short or long CAT5e/6 cables are used.
Also, gigabit Ethernet performance (throughput, packet error rate) was tested rigorously and no negative
effects were observed-the VE system is truly transparent to gigabit Ethernet operation.
Also, gigabit Ethernet performance (throughput, packet error rate) was tested rigorously and no negative
effects were observed-the VE system is truly transparent to gigabit Ethernet operation.
Packet error rates were studied with various Ethernet protocols, encryption types, packet sizes and data
rates. Packets sizes varied from runt to jumbo. The protocols included TCP, UDP, DHCP, CDP, LWAPP,
CAPWAP, EAP-TLS, Cisco LEAP and Cisco VPN. This provided a broad but common list of data
protocols, security and authentication protocols and encryption schemes. It certainly is not a complete
list but certainly indicates that no type of protocol and encryption incurred a packet error rate higher than
another protocol.
rates. Packets sizes varied from runt to jumbo. The protocols included TCP, UDP, DHCP, CDP, LWAPP,
CAPWAP, EAP-TLS, Cisco LEAP and Cisco VPN. This provided a broad but common list of data
protocols, security and authentication protocols and encryption schemes. It certainly is not a complete
list but certainly indicates that no type of protocol and encryption incurred a packet error rate higher than
another protocol.
Ethernet Compliance per 802.3 specifications
The MobileAccessVE system was examined against 802.3 (Ethernet) physical layer specifications using
engineering laboratory equipment. A complete Ethernet compliance test suite was run on the VE system
and examined such parameters as constellation error, return loss, and pulse mask. The system exhibits
a small amount of parametric degradation, equivalent to the effect of a short length of Ethernet cable
about 10-15 meters in length.
engineering laboratory equipment. A complete Ethernet compliance test suite was run on the VE system
and examined such parameters as constellation error, return loss, and pulse mask. The system exhibits
a small amount of parametric degradation, equivalent to the effect of a short length of Ethernet cable
about 10-15 meters in length.
Product Safety and Compliance
During the tests, Cisco also verified product safety and regulatory compliance, and inspected the entire
set of certifications and test reports associated with the MobileAccessVE system.
set of certifications and test reports associated with the MobileAccessVE system.
Cisco Device Compatibility
Cisco has tested the MobileAccessVE system with the entire portfolio of Aironet Wi-Fi Access Points,
and with the CAT3k and CAT4k line of Ethernet switches. PoE functionality per 802.3af/at and
compatibility with the Cisco Discovery Protocol (CDP) for enhanced PoE was verified. Note: PoE
compatibility could be an issue with legacy EOL'd Cisco access points since those products were
designed before the 802.3af PoE standard was ratified.
and with the CAT3k and CAT4k line of Ethernet switches. PoE functionality per 802.3af/at and
compatibility with the Cisco Discovery Protocol (CDP) for enhanced PoE was verified. Note: PoE
compatibility could be an issue with legacy EOL'd Cisco access points since those products were
designed before the 802.3af PoE standard was ratified.
The system works assuming the 802.3af/at Type A PoE injection convention is used. Any Ethernet client
equipment which operates outside of the 802.3af standard or with the Type B methodology may require
a special adaptor (supplied by Mobile Access) to reconfigure the PoE to a Type A equivalent. The
adaptor solution ensures that customers will be able to deploy the VE system in any current or legacy
Ethernet network.
equipment which operates outside of the 802.3af standard or with the Type B methodology may require
a special adaptor (supplied by Mobile Access) to reconfigure the PoE to a Type A equivalent. The
adaptor solution ensures that customers will be able to deploy the VE system in any current or legacy
Ethernet network.
Additional Reference Material
Design Zone for Mobility:
PoE information: