Welch Allyn Connex and Acuity Network Installation Best Practices , User Manual - Installation Guide - Manual (Page 15)

Best practice Affected types Without best practice
Security Use the following ACL for Welch Allyn patient
monitors:
•
IP access-list session WelchAllyn_ACL
• any host 255.255.255.255 udp 7711 7720 permit queue high
tos 56 dot1p-priority 7
• any alias Acuity-servers udp 1001 65535 permit queue high
tos 56 dot1p-priority 7
• user alias Acuity-servers any permit disable-scanning
• any svc-icmp permit
• any svc-dns permit
• any svc-dhcp permit
• any svc-http permit
• any svc-ntp permit
• any tcp 5650 permit queue high
• any tcp 5680 permit queue high
• any tcp 5695 permit queue high
Wireless Failure for monitor to establish session with Acuity
server, increased data loss for patient data.
SSID Configuration Avoid duplicate SSID on the 802.11a and
802.11b/g radios of an AP. Wireless Client devices may roam from the 802.11a radio on an AP
to the 802.11b/g radio rapidly, creating loss of data.
SSID/Radio settings
•
Radio Beacon Interval set to =100 msec
• DTIM set to 10
• a band Only
• Enable short preamble
• 6Mbps Data rate mandatory
• Forward UDP ports 7711 -7720
• Radio High throughput enabled (disabled)
• Interval between Identity Requests = 3
• Quiet Period after Failure Authentication=3
• WPA-key-period 2000
• Disable channel 165
Wireless Loss of connection and data, patient monitor will not
connect.
User role Assign user role based on the RADIUS server class
value. Set the class attribute on the RADIUS server to the string
that is the role assigned; Welch Allyn patient monitors. Wireless Patient monitors not assigned to a role. Unable to
connect to Acuity server.
VoIP traffic Limit VoIP traffic on 802.11a to no more than three
open connections per AP. Wireless Having more than three connections per AP has the
potential to increase patient data loss.
Wireless Multimedia (WMM) Enabled. Wireless Patient Monitors will disconnect during movement.
WLAN Optimization Aruba recommends the following:
•
Controller CPU utilization <50%
• Radio channel utilization <40%
• Number of SSIDs per AP
4
• Number of clients per AP
30
• Controller memory utilization
20Mb
• Average RSSI of all clients
-67 dBm
• AP Received packet error rate
50%.
Hardware,
wireless When network performance is outside recommended
parameters, potential loss or corruption of data.
Best practices Acuity 11