Cisco Cisco 1800 2800 3800 Series 4-Port EtherSwitch High-Speed WIC
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Router Best Practices and Selection Guide with Verizon Wireless 4G LTE
LTE-Specific Characteristics for Routers:
The following functions are specific to the 4G interface and apply to enterprise and some SMB and M2M deployments.
Availability:
-
LTE port interfaces with router to allow deep level of control (tunable timers, automation, rerouting, and
SNMP alerts based on specific radio conditions)
-
Available SNMP MIBs or other standardized method to monitor and alert on specific radio conditions, if radio
moves from LTE, EVDO, 1xRTT
-
Seamless integration of LTE interface into router
o
control of interface and connection (from router to Verizon PN)
o
same configuration, control and features available for other WAN interfaces
-
Event logging, diagnostics, statistics gathering, history/reporting (including remote low-level modem logging
ability over the IP network)
o
For LTE module, interface, radio and SIM
-
Robust self-healing and automation to restore service regardless of one or multiple outages or issues
(example is via EEM scripting, IP SLA, etc.)
Performance:
-
Significantly greater throughput compared to consumer USB modems
o
MIMO technology, greater antenna choices, detailed radio statistics for improved antenna placement
-
Support for LTE, eHRPD/EVDO revA and 1xRTT in same module/radio
o
With switching between networks in case of coverage gaps
o
Option to lock the radio access technology (e.g. only 4G, or only 3G operation)
-
Tunable timers:
o
Fast/programmable enhanced idle timer: “wake up” of radio interface (LTE and EVDO and 1xRTT)
for unsolicited/downstream traffic
o
Timers to fine tune backup/recovery bring up/down of the LTE interface for fast enterprise traffic
rerouting, and for efficient LTE network operation
o
Deep level of control (tunable timers, automation, rerouting, and alerting based on specific radio
conditions) for optimizing throughput, efficiency and reception.
-
Reception quality
o
Connections for 2 antennas. Testing shows that the difference between setting the same pair of
antennas similarly located 2” and > 17” apart (LTE wavelength) increased throughput by up to 50%.
o
Available low loss shielded cables (10 to 75 feet) for both antennas. Allows separation and
placement for improved diversity and mitigating multipath effects, without affecting router location
o
At least one 10’ low loss shielded cable provided at no cost
o
Supported antenna options such as “rubber duck”, indoor/outdoor mast, and outdoor “hockey puck”,
offering greater flexibility in gaining the optimum signal strength and reducing multipath.
-
Quality of Service (QoS):
o
If in the future, dedicated LTE bearers for enterprise traffic become available, the router should map
traffic classes to LTE bearers with traffic conditioned to not exceed the contracted rates.